By Lingyang Song, Yan Zhang, Nirwan Ansari, Jianwei Huang and Bechir Hamdaoui, Guest Editors
Welcome to this special issue of Wiley Journal of Wireless Communications and Mobile Computing (WCMC). The title of this special issue literally adopts the theme of the 2010 International Wireless Communications and Mobile Computing Conference (IWCMC 2010), as it attempts to represent the ‘best’ of IWCMC 2010 by soliciting representative quality research works presented at the conference for inclusion in this issue via a rigorous selection and review process. This special issue covers a quite broad range of topics of wireless networks, wireless communications, and mobile computing, from the physical layer through application and system design.
The goal of this special issue is to create a great opportunity for high impact research from both the mobile communications industry and academia to present and discuss new trends, developments, emerging technologies, and new industrial standards. To guarantee the quality, in this special issue, we have selectively collected 11 expanded papers from the proceedings of IWCMC 2010, and clustered them in three groups: three papers dealing with physical layer aspects, six papers investigating MAC and network layer issues, and two papers focusing on applications as well as prototypes. Detailed overview of the selected works is given below.
The first group includes three papers, which provide physical layer results for wireless communications and mobile computing. The first paper, by Takeda et al., studies joint transmit and iterative receive frequency-domain equalization for DS-CDMA. In the proposed scheme, simple one-tap frequency-domain equalization at the transmitter and iterative one-tap FDE at the receiver are jointly performed using the common knowledge of channel state information, and at the same time taking channel estimation constraints into account. The paper by Fan et al. investigates the relay position selection problem for the diamond network over Nakagami-m fading channels. This paper discusses the impact on the performance of diamond network caused by the relays' position for a general Nakagami-m fading channel, which extends the previous work for a special Rayleigh fading case, and gives clear restrictions of their positions based on the requirement of the throughput improvement and network stability. The third paper, by Stuber et al., studies outage probability for cooperative diversity with selective combining in cellular networks. The analysis mainly focuses on outage probability for amplify-and-forward and decode-and-forward cooperative diversity systems with selective combining, for the case of a log-normal Nakagami faded desired signal and log-normal Rayleigh faded co-channel interferers.
The second group of papers mainly investigates MAC and network layer issues. The first paper, by Wong et al., deals with switching cost minimization in the IEEE 802.16e mobile WiMAX sleep mode operation in order to improve the battery lifetime of the mobile station. The paper proposes a novel approach to resolve this issue by making a heuristic decision during the listening interval to minimize the switching frequency for better energy efficiency. The second paper by Lin et al. studies Multicast Broadcast Service (MBS) zone configuration for wireless multicast and broadcast service. Two schemes, the overlapping scheme and the enhanced overlapping scheme, are provided for more flexible MBS zone configuration to achieve better performance for MBS in terms of QoS and radio resource utilization. The third paper, by Kumar et al., investigates the issue of trust advisory and its establishment in mobile networks, with application to ad hoc networks, including DTNs. The authors utilized encounters in novel ways, noticing that mobility provides opportunities to build proximity, location and similarity based trust. The fourth paper by Znati et al. proposes robust multicast routing algorithms for mobile wireless networks by considering more practical challenges, e.g., the mobility of nodes, the tenuous status of communication links, limited resources, and indefinite knowledge of the network topology. This paper addresses these difficulties by providing a framework and architecture with proactive and reactive components to support multicasting to guarantee reliability and efficiency of end-to-end packet delivery. The fifth paper, by Pu et al., redefines the fairness concept regarding the application utility for time-constraint flows and then presents novel utility-based fair bandwidth sharing approaches in vehicular networks. Accordingly, two practical bandwidth-sharing schemes are provided for transferring data by fast-moving wireless nodes such as vehicles in order to guarantee QoS. The sixth paper, by Ali et al., provides a MAC protocol for cognitive wireless sensor body area networks to increases the critical traffic throughput. The proposed cognitive radio based MAC protocol prioritizes the critical packets access to the transmission medium by transmitting them with higher power while transmitting lower priority packets using lower transmission power.
The third group consists of two papers focusing on applications and prototypes. The first paper by Fantacci et al. introduces a novel communication infrastructure for emergency management to interconnect several heterogeneous systems and provide multimedia access to groups of people involved in emergency operations as foreseen by the In.Sy.Eme. (Integrated System for Emergency) project. The main scope of the In.Sy.Eme system is to facilitate functional integration of new technologies with actual or off-the-shelf technologies to provide fast responses to any emergency situations and efficient use of all available resources. The second paper, by Manfrin et al., demonstrates the CalRAdio-Based advanced Spectrum Scanner, an open platform developed to monitor the ISM 2.4-2.499 GHz band, and reveals opportunities for a better utilization of the available spectrum resources. This solution provides sensing capabilities while preserving the 802.11b standard compatibility on the CalRadio 1 platform. Moreover, it capitalizes on the ULLA framework to export spectrum occupancy information to prospective cognitive radio manager engines, through a standardized set of sensing APIs.
In conclusion, this issue of WCMC offers a state-of-the-art view of recent advances in wireless network, wireless communications, and mobile computing. It also offers both academic and industry appeal—the former as a basis toward future research directions and the latter toward viable commercial applications. In the long term, innovative wireless communications and mobile computing techniques will be characterized by their criticalness in consumer, business, and government applications to enhance the development of the whole world in realizing a better future.
Finally, we would like to thank all the authors who have submitted their papers for consideration for publishing their work in this issue. We would like to extend our gratitude to the anonymous reviewers who spent much of their precious time reviewing all the papers. Their timely reviews and comments greatly helped us select the best papers in this special issue. We also would like to thank the devoted staff of Wiley for their high level of professionalism, and particularly express our gratitude to the Editor-in-Chief of WCMC, Professor Mohsen Guizani, for his advice, patience, and encouragement from the beginning until the final stage.
We hope you will enjoy reading the great selection of papers in this issue.
Lingyang Song received the B.S. degree in communication engineering from Jilin University, China in 2002 and a PhD in differential space time codes and MIMO from the University of York, UK, in 2007, where he received the K. M. Stott Prize for excellent research. From January to September 2003 he worked as a software engineer in Hwasun Tomorrow Technology, Beijing. He worked at Philips Research UK from June to December 2005 as a research scientist. He worked as a postdoctoral research fellow at the University of Oslo, Norway, until rejoining Philips Research UK in 2008. He was a visiting research fellow at Harvard University, US, and the University of York, UK. From Mar. 2009, he starts working as a full professor in Peking University, China. He is co-inventor of a number of patents and author or co-author of over 80 journal and conference papers. He received the Best Paper Award in WiCOM, Oct. 2007. He is currently on the Editorial Board of International Journal of Communications, Network and System Sciences and International Journal of Smart Homes, a Guest Editor of Elsevier Computer Communications and EURASIP Journal on Wireless Communications and Networking, and a Guest Editor of (Wiley) Wireless Communications and Mobile Computing. He serves as a member of Technical Program Committee and Co-chair for several international conferences and workshops. He is a member of the IEEE and IEEE ComSoc.
Yan Zhang received a PhD degree in School of Electrical & Electronics Engineering, Nanyang Technological University, Singapore. From August 2006, he is working with Simula Research Laboratory, Norway. He is an associate editor or on the editorial board of several journals. He is currently serving the Book Series Editor for the book series on “Wireless Networks and Mobile Communications” (Auerbach Publications, Taylor and Francis Group). He has served as co-editor for several books. He serves as organizing committee chairs and technical program committee for many international conferences. He received the Best Paper Award and Outstanding Service Award as Symposium Chair in the IEEE 21st International Conference on Advanced Information Networking and Applications (IEEE AINA-07). His research interests include resource, mobility, spectrum, data, energy, and security management in wireless networks and mobile computing. He is a member of IEEE and IEEE ComSoc.
Nirwan Ansari received the B.S.E.E. (summa cum laude with a perfect gpa) from the New Jersey Institute of Technology (NJIT), Newark, in 1982, the M.S.E.E. degree from University of Michigan, Ann Arbor, in 1983, and the Ph.D. degree from Purdue University, West Lafayette, IN, in 1988. He joined NJIT's Department of Electrical and Computer Engineering as an Assistant Professor in 1988, tenured Associate Professor in 1993, and has been a Full Professor since 1997. He has also assumed various administrative positions at NJIT. He authored Computational Intelligence for Optimization (New York: Springer, 1997, translated into Chinese in 2000) with E.S.H. Hou and edited Neural Networks in Telecommunications (New York: Springer, 1994) with B. Yuhas. His current research focuses on various aspects of broadband networks and multimedia communications. He has also contributed 350 technical papers, over one third of which are in widely cited refereed journals/magazines. He was/is serving on the Advisory Board and Editorial Board of eight journals, including as a Senior Technical Editor of IEEE Communications Magazine (2006-2009). He had/has been serving the IEEE in various capacities such as Chair of IEEE North Jersey COMSOC Chapter, Chair of IEEE North Jersey Section, Member of IEEE Region 1 Board of Governors, Chair of IEEE COMSOC Networking TC Cluster, Chair of IEEE COMSOC Technical Committee on Ad Hoc and Sensor Networks, and Chair/TPC Chair of several conferences/symposia. He has been frequently invited to deliver keynote addresses, distinguished lectures, tutorials, and talks. Some of his recent recognitions include an IEEE Fellow (Communications Society, Class of 2009), IEEE Leadership Award (2007, from Central Jersey/Princeton Section), the NJIT Excellence in Teaching in Outstanding Professional Development (2008), IEEE MGA Leadership Award (2008), the NCE Excellence in Teaching Award (2009), a couple of best paper awards (IC-NIDC2009 and GLOBECOM 2010), a Thomas Alva Edison Patent Award (2010), and designation as an IEEE Communications Society Distinguished Lecturer (2006-2009, two terms).
Jianwei Huang has been an Assistant Professor in the Department of Information Engineering at the Chinese University of Hong Kong since 2007. He received B.S. in Electrical Engineering from Southeast University (Nanjing, Jiangsu, China) in 2000, M.S. and Ph.D. in Electrical and Computer Engineering from Northwestern University (Evanston, IL, USA) in 2003 and 2005, respectively. He worked as a Postdoc Research Associate in the Department of Electrical Engineering at Princeton University during 2005-2007, and as a summer intern in Motorola (Arlington Heights, IL, USA) in 2004 and 2005. Dr. Huang leads the Network Communications and Economics Lab (ncel.ie.cuhk.edu.hk) at the Chinese University of Hong Kong. He conducts research in the area of nonlinear optimization and game theoretical analysis of communication networks, with current focus on network economics, cognitive radio networks, broadband communication networks, and multimedia over wireless. He is the recipient of the IEEE GLOBECOM Best Paper Award in 2010, the IEEE ComSoc Asia-Pacific Outstanding Young Researcher Award in 2009, Asia-Pacific Conference on Communications Best Paper Award in 2009, and Walter P. Murphy Fellowship at Northwestern University in 2001. Dr. Huang is or has served as Editor of IEEE Transactions on Wireless Communications (2010-), Associate Editor of (Elsevier) Journal of Computer & Electrical Engineering (2007-2010), the Lead Guest Editor of IEEE Journal of Selected Areas in Communications special issue on “Game Theory in Communication Systems”, a Guest Editor of (Wiley) Wireless Communications and Mobile Computing special issue on “Innovative Communications for a Better Future”, the Lead Guest Editor of Journal of Communications special issue on “Cognitive-Radio Enabled Communications and Networking”, the Lead Guest Editor of Journal of Advances in Multimedia special issue on “Collaboration and Optimization in Multimedia Communications”, and a Guest Editor of Journal of Advances in Multimedia special issue on “Cross-layer Optimized Wireless Multimedia Communications”. Dr, Huang is or has served as Vice Chair of IEEE Communications Society Multimedia Communications Technical Committee (2010-2012), Director of IEEE Communications Society Multimedia Communications Technical Committee E-letter (2010), the Student Activities Co-Chair of International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) 2011, the TPC co-chair of the International Conference on Game Theory for Networks (GameNets) 2009, the TPC co-chair of IEEE Globecom Wireless Communications Symposium 2010, the TPC co-chair of the International Wireless Communications and Mobile Computing Conference (IWMobile Computing Symposium 2010, and TPC member of many conferences such as INFOCOM, MobiHoc, ICC, GLBOECOM, DySPAN, WiOpt, and WCNC.
Bechir Hamdaoui received the Diploma of Graduate Engineer from the National School of Engineers at Tunis (BAC + 6, ENIT), Tunisia, in 1997. He also received M.S. degrees in both Electrical & Computer Engineering (2002) and Computer Sciences (2004), and Ph.D. degree in Computer Engineering (2005) all from the University of Wisconsin at Madison. In September of 2005, he joined the Real-Time Computing Research Lab at the University of Michigan at Ann Arbor as a postdoctoral researcher. Since September of 2007, he has been with the School of EECS at Oregon State University as an assistant professor. He is presently serving as an Associate Editors for the IEEE Transactions on Vehicular Technology and the Wireless Communications and Mobile Computing journal. He also served as an Associate Editor for the Journal of Computer Systems, Networks, and Communications (2007-2009). He served as the program co-chairman of the IEEE Per-Com Pervasive Wireless Networking Workshop (2009), the program chair of the IWCMC WiMAX/WiBro Services and QoS Management Symposium (2009), and the program chair for the IWCMC Broadband Wireless Access Symposium (2010). He is a member of IEEE, IEEE Computer Society, IEEE Communications Society, and IEEE Vehicular Technology Society.