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Publisher: Institute of Electrical and Electronics Engineers (IEEE)   (Total: 176 journals)

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Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 96, SJR: 1.337, h-index: 85)
Affective Computing, IEEE Transactions on     Hybrid Journal   (Followers: 10, SJR: 1.824, h-index: 16)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Bell Labs Technical J.     Hybrid Journal   (Followers: 9, SJR: 0.411, h-index: 26)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 16, SJR: 1.462, h-index: 14)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 15, SJR: 1.184, h-index: 118)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 5, SJR: 1.314, h-index: 53)
Canadian J. of Electrical and Computer Engineering     Full-text available via subscription   (Followers: 7, SJR: 0.119, h-index: 14)
China Communications     Full-text available via subscription   (Followers: 4, SJR: 0.189, h-index: 6)
Communications and Networks, J. of     Hybrid Journal   (Followers: 4, SJR: 0.364, h-index: 23)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 13, SJR: 0.638, h-index: 14)
Computational Intelligence and AI in Games, IEEE Transactions on     Hybrid Journal   (Followers: 9)
Computer     Full-text available via subscription   (Followers: 38, SJR: 0.717, h-index: 112)
Computing in Science & Engineering     Full-text available via subscription   (Followers: 13, SJR: 0.579, h-index: 40)
Control Systems     Hybrid Journal   (Followers: 25, SJR: 0.83, h-index: 75)
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 23)
Emerging and Selected Topics in Circuits and Systems     Hybrid Journal   (Followers: 4, SJR: 0.63, h-index: 8)
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (Followers: 21, SJR: 2.458, h-index: 139)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 3, SJR: 0.808, h-index: 19)
IEEE Access     Open Access   (Followers: 6)
IEEE Aerospace and Electronic Systems Magazine     Full-text available via subscription   (Followers: 46, SJR: 0.402, h-index: 35)
IEEE Annals of the History of Computing     Full-text available via subscription   (Followers: 12, SJR: 0.134, h-index: 13)
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 15, SJR: 0.757, h-index: 57)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 13, SJR: 1.499, h-index: 54)
IEEE Circuits and Systems Magazine     Full-text available via subscription   (Followers: 28, SJR: 0.737, h-index: 32)
IEEE Communications Letters     Hybrid Journal   (Followers: 17, SJR: 1.19, h-index: 96)
IEEE Communications Magazine     Full-text available via subscription   (Followers: 26, SJR: 3.196, h-index: 144)
IEEE Communications Surveys & Tutorials     Hybrid Journal   (Followers: 10, SJR: 3.561, h-index: 52)
IEEE Computational Intelligence Magazine     Full-text available via subscription   (Followers: 13, SJR: 2.066, h-index: 26)
IEEE Computer Architecture Letters     Hybrid Journal   (Followers: 18, SJR: 0.871, h-index: 14)
IEEE Computer Graphics and Applications     Full-text available via subscription   (Followers: 12, SJR: 0.501, h-index: 62)
IEEE Consumer Electronics Magazine     Full-text available via subscription   (Followers: 17)
IEEE Control Systems Magazine     Full-text available via subscription   (Followers: 31)
IEEE Design & Test     Full-text available via subscription   (Followers: 15)
IEEE Distributed Systems Online     Full-text available via subscription   (Followers: 5)
IEEE Electrical Insulation Magazine     Full-text available via subscription   (Followers: 9, SJR: 0.577, h-index: 41)
IEEE Electromagnetic Compatibility Magazine     Full-text available via subscription   (Followers: 5)
IEEE Electron Device Letters     Full-text available via subscription   (Followers: 5, SJR: 2.191, h-index: 105)
IEEE Engineering in Medicine and Biology Magazine     Full-text available via subscription   (Followers: 5)
IEEE Engineering Management Review     Full-text available via subscription   (Followers: 11, SJR: 0.11, h-index: 9)
IEEE Geoscience and Remote Sensing Letters     Hybrid Journal   (Followers: 17, SJR: 1.481, h-index: 46)
IEEE Industrial Electronics Magazine     Full-text available via subscription   (Followers: 18, SJR: 2.105, h-index: 27)
IEEE Industry Applications Magazine     Full-text available via subscription   (Followers: 5, SJR: 0.67, h-index: 36)
IEEE Instrumentation & Measurement Magazine     Full-text available via subscription   (Followers: 19, SJR: 0.245, h-index: 26)
IEEE Intelligent Systems     Full-text available via subscription   (Followers: 24, SJR: 0.941, h-index: 79)
IEEE Internet Computing     Full-text available via subscription   (Followers: 12, SJR: 1.044, h-index: 79)
IEEE J. of Biomedical and Health Informatics     Hybrid Journal   (Followers: 9, SJR: 1.157, h-index: 61)
IEEE J. of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 12)
IEEE J. of Oceanic Engineering     Hybrid Journal   (Followers: 6, SJR: 0.687, h-index: 63)
IEEE J. of Quantum Electronics     Hybrid Journal   (Followers: 16, SJR: 1.594, h-index: 98)
IEEE J. of Selected Topics in Quantum Electronics     Hybrid Journal   (Followers: 6, SJR: 2.588, h-index: 114)
IEEE J. of Selected Topics in Signal Processing     Hybrid Journal   (Followers: 16, SJR: 2.705, h-index: 45)
IEEE J. of Solid-State Circuits     Full-text available via subscription   (Followers: 16, SJR: 3.574, h-index: 144)
IEEE J. of the Electron Devices Society     Open Access   (Followers: 3)
IEEE J. of Translational Engineering in Health and Medicine     Open Access   (Followers: 2)
IEEE J. on Selected Areas in Communications     Hybrid Journal   (Followers: 6, SJR: 3.335, h-index: 165)
IEEE Latin America Transactions     Full-text available via subscription   (Followers: 2, SJR: 0.162, h-index: 7)
IEEE Micro     Full-text available via subscription   (Followers: 5, SJR: 1.506, h-index: 67)
IEEE Microwave and Wireless Components Letters     Hybrid Journal   (Followers: 7, SJR: 1.915, h-index: 87)
IEEE Microwave Magazine     Full-text available via subscription   (Followers: 12, SJR: 0.59, h-index: 41)
IEEE Multimedia     Full-text available via subscription   (Followers: 8, SJR: 0.639, h-index: 47)
IEEE Network     Full-text available via subscription   (Followers: 16, SJR: 1.796, h-index: 80)
IEEE Pervasive Computing     Full-text available via subscription   (Followers: 11, SJR: 0.923, h-index: 69)
IEEE Photonics Technology Letters     Hybrid Journal   (Followers: 4, SJR: 1.805, h-index: 111)
IEEE Potentials     Full-text available via subscription   (Followers: 2, SJR: 0.153, h-index: 18)
IEEE Power and Energy     Full-text available via subscription   (Followers: 12, SJR: 1.671, h-index: 45)
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 6)
IEEE Revista Iberoamericana de Tecnologias del Aprendizaje     Hybrid Journal   (Followers: 1, SJR: 0.1, h-index: 3)
IEEE Robotics & Automation Magazine     Full-text available via subscription   (Followers: 22, SJR: 1.09, h-index: 51)
IEEE Security & Privacy Magazine     Full-text available via subscription   (Followers: 17, SJR: 0.588, h-index: 44)
IEEE Sensors J.     Hybrid Journal   (Followers: 53, SJR: 0.733, h-index: 56)
IEEE Signal Processing Letters     Hybrid Journal   (Followers: 16, SJR: 1.016, h-index: 82)
IEEE Signal Processing Magazine     Full-text available via subscription   (Followers: 36, SJR: 1.831, h-index: 106)
IEEE Software     Full-text available via subscription   (Followers: 39, SJR: 0.842, h-index: 72)
IEEE Spectrum     Full-text available via subscription   (Followers: 44, SJR: 0.191, h-index: 48)
IEEE Systems J.     Hybrid Journal   (Followers: 8, SJR: 1.034, h-index: 17)
IEEE Technology and Society Magazine     Full-text available via subscription   (Followers: 4, SJR: 0.348, h-index: 17)
IEEE Transactions on Advanced Packaging     Full-text available via subscription   (Followers: 5, SJR: 0.598, h-index: 52)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 10, SJR: 1.837, h-index: 118)
IEEE Transactions on Applied Superconductivity     Hybrid Journal   (Followers: 1, SJR: 0.46, h-index: 54)
IEEE Transactions on Audio, Speech, and Language Processing     Hybrid Journal   (Followers: 13)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 26, SJR: 2.992, h-index: 175)
IEEE Transactions on Automation Science and Engineering     Full-text available via subscription   (Followers: 10, SJR: 1.287, h-index: 35)
IEEE Transactions on Biomedical Circuits and Systems     Hybrid Journal   (Followers: 6, SJR: 1.876, h-index: 29)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 6, SJR: 1.47, h-index: 124)
IEEE Transactions on Circuits and Systems I: Regular Papers     Hybrid Journal   (Followers: 11, SJR: 1.406, h-index: 68)
IEEE Transactions on Circuits and Systems II: Express Briefs     Hybrid Journal   (Followers: 10, SJR: 0.932, h-index: 53)
IEEE Transactions on Cloud Computing     Hybrid Journal   (Followers: 7)
IEEE Transactions on Communications     Hybrid Journal   (Followers: 10, SJR: 2.035, h-index: 150)
IEEE Transactions on Components and Packaging Technologies     Full-text available via subscription   (Followers: 9, SJR: 0.71, h-index: 50)
IEEE Transactions on Computational Social Systems     Full-text available via subscription  
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems     Hybrid Journal   (Followers: 6, SJR: 0.77, h-index: 83)
IEEE Transactions on Computers     Hybrid Journal   (Followers: 19, SJR: 0.768, h-index: 81)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 17, SJR: 0.731, h-index: 69)
IEEE Transactions on Control of Network Systems     Hybrid Journal  
IEEE Transactions on Control Systems Technology     Hybrid Journal   (Followers: 23, SJR: 1.543, h-index: 87)
IEEE Transactions on Cybernetics     Hybrid Journal   (Followers: 8)
IEEE Transactions on Dependable and Secure Computing     Hybrid Journal   (Followers: 11, SJR: 0.866, h-index: 36)
IEEE Transactions on Device and Materials Reliability     Hybrid Journal   (Followers: 14, SJR: 0.785, h-index: 45)
IEEE Transactions on Dielectrics and Electrical Insulation     Hybrid Journal   (Followers: 5, SJR: 0.635, h-index: 71)

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Journal Cover   IEEE Communications Magazine
  [SJR: 3.196]   [H-I: 144]   [26 followers]  Follow
   Full-text available via subscription Subscription journal
   ISSN (Print) 0163-6804
   Published by Institute of Electrical and Electronics Engineers (IEEE) Homepage  [176 journals]
  • IEEE Communications Magazine - Cover
    • Abstract: Presents the front cover for this issue of the magazine.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Global Communications Newsletter
    • Authors: Gunawan; A.H.;Abdulla, M.;Benyamin-Seeyar, A.;Labeau, F.;Jankovic, M.;Oaca, N.;Sweeney, H.A.;
      Pages: 1 - 4
      Abstract: Presents key events and topics in the global communications industry.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Table of contents
    • Pages: 2 - 4
      Abstract: Presents the table of contents for this issue of this magazine.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • CQ comsoc: calling all comsoc radio amateurs [The President's Page]
    • Authors: Benedetto; S.;Zuckerman, D.;
      Pages: 6 - 8
      Abstract: Presents the President???s Message for this issue of the publication.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Conference calendar
    • Pages: 9 - 10
      Abstract: Provides a notice of upcoming conference events of interest to practitioners and researchers.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • ICIN 2015: Innovations in services, networks and clouds connecting people,
           things, and machines [Conference Report]
    • Authors: Crespi; N.;Bertin, E.;
      Pages: 15 - 15
      Abstract: A total of 105 delegates from 26 countries representing about 60 different organizations met in Paris, France for the 16th ICIN conference to discuss new technologies from the Internet and from the telecommunications industry. ICIN 2015 took place February 17???19, with the technical co-sponsorship of the IEEE and IEEE Communications Society, and the support of Ericsson, Nokia, BroadSoft, Orange, and Institut Mines-Telecom. ICIN has a 26-year history of anticipating the key trends in communications networks and services, showcasing technologies and architectures that become vital elements of delivering services.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • 5G Spectrum: enabling the future mobile landscape [Guest Editorial]
    • Authors: Schotten; H.D.;Uusitalo, M.A.;Monserrat, J.F.;Queseth, O.;
      Pages: 16 - 17
      Abstract: The arrival of the fifth generation (5G) is expected to come together with three important enablers. First, the densification of access nodes will continue. Second, 5G networks must be highly flexible and adapt to the dynamism of the traffic location and patterns. For this, some of the radio access network (RAN) functionalities will run in large computer centers, able to dynamically assign more or fewer units of computation to the virtual cells distributed in the network. Finally, a complex landscape of spectrum availability and access will emerge where multiple frequency bands, subject to different regulations including various forms of shared spectrum, are expected to be available to wireless communication systems.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Spectrum access system for the citizen broadband radio service
    • Authors: Sohul; M.M.;Yao, M.;Yang, T.;Reed, J.H.;
      Pages: 18 - 25
      Abstract: As a part of the global effort to address the overwhelming demand for wireless broadband capacity, the wireless communities in the United States have undertaken innovative initiatives such as tiered-access to shared spectrum. The Federal Communications Commission has proposed a dynamic spectrum management framework for a Citizen Broadband Radio Service (CBRS) governed by a spectrum access system (SAS). The implementation of a SAS capable of dynamic frequency assignment and interference management is critical for the success of the proposed framework. In this paper we present the efforts toward a spectrum sharing system in the U.S. context by summarizing different interest groups??? standpoint on the FCC proposed framework. We also present an example SAS architecture that accommodates the tiered access to shared spectrum and example approaches to achieve important SAS capabilities.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Toward spectrum sharing: opportunities and technical enablers
    • Authors: Chatzikokolakis; K.;Spapis, P.;Kaloxylos, A.;Alonistioti, N.;
      Pages: 26 - 33
      Abstract: The vast increase in the number of mobile devices and their mobile traffic demands indicates the need for additional spectrum for cellular communications. Since it is not trivial to allocate exclusively new spectrum bands for cellular communications, it is imperative to improve the spectrum usage through new spectrum sharing mechanisms. This implies that the mobile network operators will have to cooperate and interact to cover the augmented traffic requirements. In this article we present a novel architectural framework that enables the mobile network operators and other spectrum license holders to exchange information about spectrum availability. We also present a novel spectrum sharing mechanism based on fuzzy logic to facilitate operators in selecting the most suitable spectrum to cover their needs.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Coordination protocol for inter-operator spectrum sharing in co-primary 5G
           small cell networks
    • Authors: Singh; B.;Hailu, S.;Koufos, K.;Dowhuszko, A.A.;Tirkkonen, O.;J??ntti, R.;Berry, R.;
      Pages: 34 - 40
      Abstract: We consider spectrum sharing between a limited set of operators having similar rights for accessing spectrum. A coordination protocol acting on the level of the RAN is designed. The protocol is non-cooperative, but assumes an agreement to a set of negotiation rules. The signaling overhead is low, and knowledge of a competitor???s channel state information is not assumed. No monetary transactions are involved; instead, spectrum sharing is based on a RAN-internal virtual currency. The protocol is applicable both in a scenario of mutual renting and when the operators form a spectrum pool. The protocol reacts to variations in interference and load of operators, and shows gains in a simulated small cell scenario.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Spectrum and license flexibility for 5G networks
    • Authors: Kliks; A.;Holland, O.;Basaure, A.;Matinmikko, M.;
      Pages: 42 - 49
      Abstract: Spectrum sharing is a key solution facilitating availability of the necessary spectrum for 5G wireless networks. This article addresses the problem of flexible spectrum sharing by the application of adaptive licensing among interested stakeholders. In particular, it acts as a proponent of ???pluralistic licensing??? and verifies it in three simulation scenarios that are of strong interest from the perspective of 5G networks. The concluding analysis offers discussion of the potential benefits offered to spectrum holders and other interested players through the application of the pluralistic licensing concept.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Broadcast television spectrum incentive auctions in the u.s.: trends,
           challenges, and opportunities
    • Authors: Gomez-Barquero; D.;Caldwell, M.W.;
      Pages: 50 - 56
      Abstract: This article presents an overview of the upcoming television broadcast spectrum incentive auction in the U.S., which will be the first ever attempted worldwide, and discusses the main business, regulatory, and technical challenges of a successful incentive auction. The process combines two separate but linked auctions: a reverse auction, which will identify the prices at which broadcasters are willing to relinquish their spectrum; and a forward auction, which will determine the price mobile network operators are willing to pay to acquire the new frequencies. The two auctions will determine the buyers and sellers and also the amount of spectrum to be cleared in the 600 MHz band after reorganizing the television stations that remain on air. This process is known as repacking and will create contiguous blocks of cleared spectrum at the high frequency side of the UHF band for mobile use. The article also reviews the potential plans for the 600 MHz band and discusses the opportunities that could bring about the new digital terrestrial television standard known as ???ATSC 3.0.???
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • 5G Spectrum: is china ready?
    • Authors: Wang; T.;Li, G.;Ding, J.;Miao, Q.;Li, J.;Wang, Y.;
      Pages: 58 - 65
      Abstract: With a considerable ratio of the world???s mobile users, China has been actively promoting research on 5G, in which the spectrum issue is of great interest. New 5G characteristics put forward a lot of requirements for spectrum in terms of total amount, candidate bands, as well as new challenges for spectrum usage methods and management. Based on China???s current situation, this article first discusses the 5G vision, spectrum demands, and potential candidate bands. Furthermore, it is indicated that spectrum sharing will bring many benefits for 5G systems, and different sharing scenarios are summarized. Finally, based on the current framework of spectrum management in China, potential services classification and spectrum assessment are proposed to accommodate new 5G requirements.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Emerging applications, services, and engineering for cellular cognitive
           systems: part II [Guest Editorial]
    • Authors: Shakir; M.Z.;Dobre, O.A.;Imran, M.A.;Papathanassiou, A.;Zhang, Z.;Vasilakos, A.V.;Wang, H.;Harada, H.;
      Pages: 66 - 68
      Abstract: We are back this month with a sequel to our May 2015 Feature Topic on Emerging Applications, Services, and Engineering for Cognitive Cellular Systems (EASE for CCS). In this followup, we have eight more articles that present emerging applications integrated with CCS through novel frameworks. These emerging applications include energy harvesting, network virtualization, machine learning approaches, backward-compatible cognition in LTE, self-organization capabilities, integration of vehicular networking over unlicensed spectrum, 2.4/5 GHz hybrid architecture, and integration of D2D communications.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Solar energy empowered 5G cognitive metro-cellular networks
    • Authors: Ali Raza Zaidi; S.;Afzal, A.;Hafeez, M.;Ghogho, M.;Mclernon, D.C.;Swami, A.;
      Pages: 70 - 77
      Abstract: Harvesting energy from natural (solar, wind, vibration, etc.) and synthesized (microwave power transfer) sources is envisioned as a key enabler for realizing green wireless networks. Energy efficient scheduling is one of the prime objectives in emerging cognitive radio platforms. To that end, in this article we present a comprehensive framework to characterize the performance of a cognitive metro-cellular network empowered by solar energy harvesting. The proposed model allows designers to capture both the spatial and temporal dynamics of the energy field and the mobile user traffic. A new definition for the ???energy outage probability??? metric, which characterizes the self-sustainable operation of the base stations under energy harvesting, is proposed, and the process for quantifying is described with the help of a case study for various UK cities. It is shown that the energy outage probability is strongly coupled with the path-loss exponent, required quality of service, and base station and user density. Moreover, the energy outage probability varies both on a daily and yearly basis depending on the solar geometry. It is observed that even in winter, BSs can run for three to six hours without any purchase of energy from the power grid by harvesting instantaneous energy.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Virtualized cognitive network architecture for 5G cellular networks
    • Authors: Elsawy; H.;Dahrouj, H.;Al-Naffouri, T.Y.;Alouini, M.-S.;
      Pages: 78 - 85
      Abstract: Cellular networks have preserved an application agnostic and base station (BS) centric architecture1 for decades. Network functionalities (e.g. user association) are decided and performed regardless of the underlying application (e.g. automation, tactile Internet, online gaming, multimedia). Such an ossified architecture imposes several hurdles against achieving the ambitious metrics of next generation cellular systems. This article first highlights the features and drawbacks of such architectural ossification. Then the article proposes a virtualized and cognitive network architecture, wherein network functionalities are implemented via software instances in the cloud, and the underlying architecture can adapt to the application of interest as well as to changes in channels and traffic conditions. The adaptation is done in terms of the network topology by manipulating connectivities and steering traffic via different paths, so as to attain the applications??? requirements and network design objectives. The article presents cognitive strategies to implement some of the classical network functionalities, along with their related implementation challenges. The article further presents a case study illustrating the performance improvement of the proposed architecture as compared to conventional cellular networks, both in terms of outage probability and handover rate.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Enhanced multi-parameter cognitive architecture for future wireless
    • Authors: Gao; F.;Zhang, K.;
      Pages: 86 - 92
      Abstract: The very original concept of cognitive radio raised by Mitola targets at all the environment parameters, including those in the physical, MAC, and application layers, as well as the information extracted from reasoning. Hence, the first CR is also referred to as ???full cognitive radio.??? However, due to its difficult implementation, the FCC and Simon Haykin separately proposed a very simplified definition, in which CR mainly detects a single parameter, spectrum occupancy, and is also called ???spectrum sensing cognitive radio.??? With the rapid development of wireless communications, the infrastructure of a wireless system becomes much more complicated, while the functionality at every node is desired to be as intelligent as possible, say selforganized capability approaching 5G cellular networks. It is then interesting to reconsider Mitola???s definition and think whether one could, besides obtaining the on/off status of the licensed user only, achieve more parameters in a cognitive way. In this article, we propose a new cognitive architecture targeting multiple parameters for future cellular networks, which is one step further toward ???full cognition??? compared to most existing CR research. The new architecture is elaborated in detailed stages, and three representative examples are provided based on recent research progress to illustrate the feasibility as well as the validity of the proposed architecture.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • CPC-based backward-compatible network access for LTE cognitive radio
           cellular networks
    • Authors: Liu; L.;Zhou, Y.;Tian, L.;Shi, J.;
      Pages: 93 - 99
      Abstract: Network access plays an important role in LTE cognitive radio (LTE-CR) cellular networks in determining users??? experiences. An overview is first carried out on network access schemes in existing cognitive cellular networks such as IEEE 802.22 and IEEE 1900.4, based on which it can be seen that cognitive pilot channel (CPC)-based network access is a promising scheme for LTECR, which may provide fast network access and put no stringent requirements on terminals. Next, considering the implementation issues of CPC in practical systems, a CPC-based backward- compatible network access scheme should be designed for LTE-CR to facilitate the application of CR in LTE networks, which could exploit existing LTE structures and technologies to carry CPC information. To achieve this, a new system information block (SIB) should be designed to carry CPC on a current physical downlink shared channel with little standards effort. Moreover, load awareness is introduced so that LTE-CR is activated only when the system load is high. The complete process of this SIB-CPC-based backward-compatible and loadaware network access is described, and its performance is evaluated via simulations. It is shown that the blocking ratio of LTE-CR can be reduced notably compared to that of conventional LTE without CR. Moreover, by selecting an appropriate load threshold to activate LTE-CR, the average user throughput of LTE can be improved with near-zero blocking ratio by offloading users to complementary cognitive spectra.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • A game-theoretic perspective on self-organizing optimization for cognitive
           small cells
    • Authors: Xu; Y.;Wang, J.;Wu, Q.;Du, Z.;Shen, L.;Anpalagan, A.;
      Pages: 100 - 108
      Abstract: In this article, we investigate self-organizing optimization for cognitive small cells (CSCs), which have the ability to sense the environment, learn from historical information, make intelligent decisions, and adjust their operational parameters. By exploring the inherent features, some fundamental challenges for self-organizing optimization in CSCs are presented and discussed. Specifically, the dense and random deployment of CSCs brings about some new challenges in terms of scalability and adaptation; furthermore, the uncertain, dynamic, and incomplete information constraints also impose some new challenges in terms of convergence and robustness. For providing better service to users and improving resource utilization, four requirements for self-organizing optimization in CSCs are presented and discussed. Following the attractive fact that the decisions in game-theoretic models are exactly coincident with those in self-organizing optimization (i.e., distributed and autonomous), we establish a framework of gametheoretic solutions for self-organizing optimization in CSCs and propose some featured game models. Specifically, their basic models are presented, some examples are discussed, and future research directions are given.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Cognitive vehicular communication for 5G
    • Authors: Mumtaz; S.;Saidul Huq, K.M.;Ikram Ashraf, M.;Rodriguez, J.;Monteiro, V.;Politis, C.;
      Pages: 109 - 117
      Abstract: Device-to-device (D2D) is increasingly becoming a prominent technology within the 5G story, portrayed as a means of offloading traffic from the core network. The ever increasing demand for vehicular traffic consumption is providing the impetus for a new architectural design that can harness the benefits of D2D for vehicular users, taking a step toward offloading vehicular traffic from the core network. We propose the notion of extending D2D for vehicular scenarios with the potential to coordinate vehicular traffic using the LTE band. Furthermore, we then extend this approach by investigating cognitive radio in synergy with a geo-location database, to exploit white spaces as a means of further offloading vehicular users. Our simulation results have shown that our approach can outperform the legacy IEEE 802.11p in terms of delay.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • CogCell: cognitive interplay between 60 GHz picocells and 2.4/5 GHz
           hotspots in the 5G era
    • Authors: Chandra; K.;Venkatesha Prasad, R.;Bien Quang;Niemegeers, I.G.M.M.;
      Pages: 118 - 125
      Abstract: The rapid proliferation of wireless communication devices and the emergence of a variety of new applications have triggered investigations into next-generation mobile broadband systems, i.e. 5G. Legacy 2G???4G systems covering large areas were envisioned to serve both indoor and outdoor environments. However, in the 5G era, 80 percent of all traffic is expected to be generated indoors. Hence, the current approach of macrocell mobile networks, where there is no differentiation between indoors and outdoors, needs to be reconsidered. We envision 60 GHz mmWave picocell architecture to support highspeed indoor and hotspot communications. We envisage the 5G indoor network as a combination of, and interplay between, 2.4/5 GHz having robust coverage and 60 GHz links offering a high data rate. This requires intelligent coordination and cooperation. We propose a 60 GHz picocellular network architecture, called CogCell, leveraging ubiquitous WiFi. We propose to use 60 GHz for the data plane and 2.4/5GHz for the control plane. The hybrid network architecture considers an opportunistic fall-back to 2.4/5 GHz in case of poor connectivity in the 60 GHz domain. Further, to avoid the frequent re-beamforming in 60 GHz directional links due to mobility, we propose a cognitive module, a sensor- assisted intelligent beam switching procedure, that reduces communication overhead. We believe that the CogCell concept will help future indoor communications and possibly outdoor hotspots, where mobile stations and access points collaborate with each other to improve the user experience.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Cognitive spectrum access in device-to-device-enabled cellular networks
    • Authors: Sakr; A.H.;Tabassum, H.;Hossain, E.;Kim, D.I.;
      Pages: 126 - 133
      Abstract: Cognitive spectrum access (CSA) in in-band D2D-enabled cellular networks is a potential feature that can promote efficient resource utilization and interference management among coexisting cellular and D2D users. In this article, we first outline the challenges in resource allocation posed by the coexistence of cellular and D2D users. Next, we provide a qualitative overview of the existing resource allocation and interference management policies for in-band D2D-enabled cellular networks. We then demonstrate how cognition along with limited information exchange between D2D users and the core network can be used to mitigate interference and enhance spectral efficiency of both cellular and D2D users. In particular, we propose a CSA scheme that exploits channel sensing and interference- aware decision making at the D2D terminals. This CSA scheme at the D2D terminals is complemented by a D2D-aware channel access method at the cellular BSs. The performance gains of the proposed CSA scheme are characterized in terms of channel access probability for a typical D2D transmitter and spectral efficiencies for both cellular and D2D transmissions. Finally, potential research issues that require further investigation are highlighted.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Network and service management [Series Editorial]
    • Authors: Pavlou; G.;Sch??nw??lder, J.;
      Pages: 134 - 135
      Abstract: The articles in this special section focus on new network and service management technologies and communications applications.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Toward a holistic federated future internet experimentation environment:
           the experience of NOVI research and experimentation
    • Authors: Maglaris; V.;Papagianni, C.;Androulidakis, G.;Grammatikou, M.;Grosso, P.;Van Der Ham, J.;De Laat, C.;Pietrzak, B.;Belter, B.;Steger, J.;Laki, S.;Campanella, M.;Sallent, S.;
      Pages: 136 - 144
      Abstract: This article presents the design and pilot implementation of a suite of intelligent methods, algorithms, and tools for federating heterogeneous experimental platforms (domains) toward a holistic Future Internet experimentation ecosystem. The proposed framework developed within the NOVI research and experimentation European collaborative effort, aims at providing a modular data, control, and management plane architecture that includes: an information model capturing the abstractions of virtualized resources residing in different yet interworking experimental platforms; resource mapping algorithms tackling the inter-domain virtual network embedding problem; mechanisms providing interoperability of monitoring tools; policy-based management services for role-based intra and inter-domain management policies; and dataplane stitching mechanisms to enable the composition of user-specific slices (baskets of virtual resources drawn from the federated substrate). The NOVI framework was deployed and validated in a combined testbed consisting of two dissimilar platforms: a private PlanetLab domain with resources interconnected over the public Internet; and FEDERICA, an infrastructure of virtual resources interconnected via dedicated networking facilities of European National Research and Education Networks and G??ANT. This pre-normative work is expected to contribute to bridging Future Internet experimental federations with interconnected cloud architectures and interworked public/private data-centers, adding value via its intelligent services, information models, and composite algorithms.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Quality of experience management in mobile cellular networks: key issues
           and design challenges
    • Authors: Liotou; E.;Tsolkas, D.;Passas, N.;Merakos, L.;
      Pages: 145 - 153
      Abstract: Telecom operators have recently faced the need for a radical shift from technical quality requirements to customer experience guarantees. This trend has emerged due to the constantly increasing amount of mobile devices and applications and the explosion of overall traffic demand, forming a new era: ???the rise of the consumer???. New terms have been coined in order to quantify, manage, and improve the experienced user quality, with QoE being the most dominant one. However, QoE has always been an afterthought for network providers, and thus numerous research questions need to be answered prior to a shift from conventional network- centric paradigms to more user-centric approaches. To this end, the scope of this article is to provide insights on the issue of networklevel QoE management, identifying the open issues and prerequisites toward acquiring QoE awareness and enabling QoE support in mobile cellular networks. A conceptual framework for achieving end-to-end QoE provisioning is proposed and described in detail in terms of its design, its constituents and their interactions, as well as the key implementation challenges. An evaluation study serves as a proof of concept for this framework, and demonstrates the potential benefits of implementing such a quality management scheme on top of current or future generations of mobile cellular networks.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • An open framework for programmable, self-managed radio access networks
    • Authors: Tsagkaris; K.;Poulios, G.;Demestichas, P.;Tall, A.;Altman, Z.;Destr??, C.;
      Pages: 154 - 161
      Abstract: SON technologies have been a promising approach for simplified and automated RAN management. Currently, SON functions can be D-SON among the network elements or C-SON as part of the OSS/NMS. D-SON technology is typically provided by equipment vendors, while C-SON is provided by both third parties and equipment vendors. D-SON has high reactivity but is usually provided as black boxes with poor or no interoperability between different vendors and management systems, hence rendering their integration a challenging task. On the other hand, OSS/NMS-level SONs, although provided with a global network view, are limited to coarse time operation. In this work we apply SDN principles to the management of RANs and propose a software-defined SON (SD-SON) framework that tackles the shortcomings and combines the benefits of both approaches above, namely, high reactivity along with flexibility, programmability, and openness. The architectural components, implementation aspects, and advantages of the proposed SD-SON framework are described in detail. A proof-of-concept prototype of a programmable self-managed LTE-Advanced heterogeneous network is also presented.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • On-demand scheduling: achieving QoS differentiation for D2D communications
    • Authors: Min Sheng;Hongguang Sun;Xijun Wang;Yan Zhang;Quek; T.Q.S.;Junyu Liu;Jiandong Li;
      Pages: 162 - 170
      Abstract: As a major supplement to LTE-Advanced, D2D communications underlaying cellular networks have proven efficient in offloading network infrastructures and improving network performance. The scheduling mechanism plays a key role in providing better user experience in D2D communications. However, controlled by operators, D2D communications pose specific problems that do not exist in available wireless networks. Therefore, mature scheduling mechanisms devised for cellular networks or ad hoc networks are not directly applicable to D2D communications. In this article, we first review recent research on scheduling mechanisms for D2D communications, and discuss the design considerations and implementation challenges. Then we propose an on-demand scheduling mechanism, DO-Fast, which can provide QoS differentiation capabilities. Next, we provide performance evaluations based on simulations and an experimental testbed. Finally, we conclude this article and point out possible directions for future research.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Ad hoc and sensor networks [Series Editorial]
    • Authors: Biagioni; E.;Giordano, S.;
      Pages: 171 - 171
      Abstract: The articles in this special section focus on Ad hoc and sensor networks.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Pedestrian mobility in theme park disasters
    • Authors: Solmaz; G.;Turgut, D.;
      Pages: 172 - 177
      Abstract: Realistic mobility simulation is critical for evaluating the performance of communication networks. Although various mobility models exist, they do not capture the changes in the mobility decisions of pedestrians in specific environments. For instance, in the case of a natural or manmade disaster, the main goal is the safe evacuation of the area, creating unique pedestrian mobility patterns. In this article we focus on the scenario of evacuating a theme park in response to a disaster. We discuss the characteristics of theme parks, modeling the environment, and the mobility decisions of pedestrians. Real theme park maps are used for modeling the environment with roads, physical obstacles, and simulating disaster events. The mobility decisions of the pedestrians are based on the evacuation goal, the limited knowledge of the area, and the obstacles. The impact of the interactions between the crowd flows is modeled based on the concept of social force. The model is evaluated by comparison with the existing mobility models and the GPS traces of theme park visitors.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • On the limits of predictability in real-world radio spectrum state
           dynamics: from entropy theory to 5G spectrum sharing
    • Authors: Guoru Ding;Jinlong Wang;Qihui Wu;Yu-Dong Yao;Rongpeng Li;Honggang Zhang;Yulong Zou;
      Pages: 178 - 183
      Abstract: A range of applications in cognitive radio networks, from adaptive spectrum sensing to predictive spectrum mobility and dynamic spectrum access, depend on our ability to foresee the state evolution of radio spectrum, raising a fundamental question: To what degree is radio spectrum state (RSS) predictable? In this article we explore the fundamental limits of predictability in RSS dynamics by studying the RSS evolution patterns in spectrum bands of several popular services, including TV bands, ISM bands, cellular bands, and so on. From an information theory perspective, we introduce a methodology of using statistical entropy measures and Fano inequality to quantify the degree of predictability underlying real-world spectrum measurements. Despite the apparent randomness, we find a remarkable predictability, as large as 90 percent, in real-world RSS dynamics over a number of spectrum bands for all popular services. Furthermore, we discuss the potential applications of prediction-based spectrum sharing in 5G wireless communications.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • An evolutionary path for the evolved packet system
    • Authors: Portoles-Comeras; M.;Mangues-Bafalluy, J.;Krendzel, A.;Requena-Esteso, M.;Cabellos-Aparicio, A.;
      Pages: 184 - 191
      Abstract: New architectural requirements appear with the evolution of mobile networks, such as the provisioning of multihoming or offloading. In general, this requires the design of ad hoc schemes on top of the EPS, which may be seen as an indicator of the need for a back-to-basics architectural analysis. This article analyzes the basic architectural principles of the EPS, and compares them with those of SDN and LISP. We then describe an evolutionary path for the EPS, by showing how, with slight modifications inspired by SDN and LISP, future mobile carrier networks could natively fulfill some of their flexibility and scalability requirements. The key design principles for that are: a generalized use of traffic flow templates (i.e., 5-tuple flows) for more flexible IP flow handling; a full decoupling of control and user plane for flexibility; and an on-demand (or pull-based) state setting at network nodes for scalability. Some examples are given to illustrate the thesis of this article.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Coverage enhancement techniques for machine-to-machine communications over
    • Authors: Naddafzadeh-Shirazi; G.;Lampe, L.;Vos, G.;Bennett, S.;
      Pages: 192 - 200
      Abstract: The tremendous growth of machine-tomachine (M2M) applications has been a great attractor to cellular network operators to provide machine-type communication services. One of the important challenges for cellular systems supporting M2M terminals is coverage, because terminals can be located in spaces in buildings and structures suffering from significant penetration losses. Since these terminals are also often stationary, they are permanently without cellular coverage. To address this critical issue, the third generation partnership project (3GPP), and in particular its radio access network technical specification group, commenced work on coverage enhancement (CE) for long-term evolution (LTE) systems in June 2013. This article reviews the CE objectives defined for LTE machine-type communication and presents CE methods for LTE downlink and uplink channels discussed in this group. The presented methods achieve CE in a spectrally efficient manner and without notably affecting performance for legacy (non- M2M) devices.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • LISP: a southbound SDN protocol?
    • Authors: Rodriguez-Natal; A.;Portoles-Comeras, M.;Ermagan, V.;Lewis, D.;Farinacci, D.;Maino, F.;Cabellos-Aparicio, A.;
      Pages: 201 - 207
      Abstract: The Locator/ID Separation Protocol (LISP) splits current IP addresses overlapping semantics of identity and location into two separate namespaces. Since its inception the protocol has gained considerable attention from both industry and academia, motivating several new use cases to be proposed. Despite its inherent control-data decoupling and the abstraction and flexibility it introduces into the network, little has been said about the role of LISP on the SDN paradigm. In this article we try to fill that gap and analyze if LISP can be used for SDN. The article presents a systematic analysis of the relevant SDN requirements and how such requirements can be fulfilled by the LISP architecture and components. This results in a set of benefits (e.g. incremental deployment, scalability, flexibility, interoperability, and inter-domain support) and drawbacks (e.g. extra headers and some initial delay) of using LISP for SDN. In order to validate the analysis, we have built and tested a prototype using the LISPmob open-source implementation.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
  • Advertisers??? index
    • Pages: 208 - 208
      Abstract: Presents the index of advertisers in this issue of the publication.
      PubDate: July 2015
      Issue No: Vol. 53, No. 7 (2015)
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