The Wireless World Research Fo- rum (WWRF; www.wireless-world- research.org) was ... Zafar et al. exploits the obvious benefits of a cooperative (virtual) ...
Christos Politis, Sudhir Dixit, and Victor Leung
FROM THE GUEST EDITORS
Wireless for the Next Generation
T
he Wireless World Research Forum (WWRF; www.wireless-worldresearch.org) was established in 2001 to bring together industry and academic researchers to create a clear, comprehensive, and harmonized view of future research in mobile and wireless communications. The WWRF is a global organization with more than 100 members from five continents, representing all sectors of mobile communications industry and the research community, with the mission to shape the wireless future. The forum provides strategic future research directions in the wireless field to generate, identify, and promote research areas and technical trends for mobile and wireless system technologies. Members also discuss how new insights will impact innovative application areas such as intelligent ambient environments, health care, automotive, education, and energy conservation. Besides several publications at regular journals, invited talks, sessions, and panels at major conferences, the WWRF has established the following two major publication channels. Together with the Wiley WWRF Book Series, with four books already being published and additional ones yet to be published, this special issue is a part of WWRF publications in IEEE Digital Object Identifier 10.1109/MVT.2011.940400 Date of publication: 4 March 2011
THE WWRF IS A GLOBAL ORGANIZATION WITH MORE THAN 100 MEMBERS FROM FIVE CONTINENTS, REPRESENTING ALL SECTORS OF MOBILE COMMUNICATIONS INDUSTRY AND THE RESEARCH COMMUNITY, WITH THE MISSION TO SHAPE THE WIRELESS FUTURE.
Vehicular Technology Magazine WWRF journal series. This special issue contains a selection of papers from the 25th WWRF Meeting that was hosted by Kingston University London as a three-day event with the theme “Wireless for the Next Generation.” Out of more than 65 papers presented at WWRF 25 in London, United Kingdom, 16–18 November 2010, this edition has selected six best papers. Wireless systems and networks are increasingly being introduced in all dimensions and areas of everyday life, providing intelligent and omnipresent solutions. Wireless for the next generation will be able to support such services and solutions by being smart, efficient, secure, and multifaceted. This edition of IEEE Vehicular Technology Magazine highlights the contributions in the areas of mechanical relaying, cognitive networks for future Internet, ad hoc networking, small-cell networks (SCNs), and security and prevention policies for the next-generation networks. In “Future Wireless Mobile Networks” by Kolios et al., a set of techniques based on mechanical relaying
MARCH 2011 | IEEE VEHICULAR TECHNOLOGY MAGAZINE
for wireless networks are presented and further describe the benefits that stem from the use of such relaying schemes in terms of energy consumption and resource utilization in the network. “Ad Hoc Networking Solutions” by Zafar et al. exploits the obvious benefits of a cooperative (virtual) MIMO multihop scheme to utilize idle neighboring nodes. The authors present a few solutions on different OSI layers that provide a good end-to-end performance of such a scheme while ensuring that the network is decentralized and that it operates in a self-organized manner. The article “Green Small-Cell Networks” by Hoydis et al. investigates several applications of recent results of large random matrix theory to the performance analysis of SCNs. This work focuses on how RMT can be used to provide tight and tractable approximations of key performance parameters, such as capacity and outage probability, and demonstrates how it can be applied to the related optimization problems. The article “Cognitive Femtocell” by Al-Rubaye et al. presents a cognitive
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WE HOPE THIS SPECIAL ISSUE PROVIDES OPPORTUNITIES FOR READERS TO EXPLORE THE LATEST TECHNOLOGIES DRIVING WIRELESS ECOSYSTEM.
femtocell solution for spectrum scarcity problems and local convergence demands for indoor network applications. In addition, a developed gateway broadband router based on original cross-layer management optimization is used to control the data packet delivery between the macrocell and cognitive femtocell using a priority queuing strategy. The article “Sender Scorecards” by Schmidt et al. reports that unsolicited communication is a major issue in digital communications and hence for the networks enabling such communication. In addition to the protection methods identified in 3GPP TR 33.937, this work presents a concept that uses a secure and interoperable scorecard, which is associated with the caller and IMS communication. Depending on the outcome of the scorecard evaluation, the receiving domain can take appropriate actions such as denying or allowing a communication attempt. When a party provides service and wishes to receive compensation for the provision of its resources, the question of getting assured accounting information emerges. While various prepaid or postpaid solutions can be devised, it does not provide very good protection if the service is not received after the payment or the user disputes the bill. Heikkinen and Siltala propose in their article “Service Usage Accounting” a network-level service usage solution, which provides assured accounting information strongly bound to the host identity, so that the user is not able to repudiate the charges. To protect the user, the solution employs a granular approach, where evidence of service usage is provided in a piecemeal manner, i.e., pay as you go. An implementation of such a solution is presented that is based on the employment of host identity protocol and hash chains.
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In conclusion, we thank all the contributors who submitted their articles to this special issue, reviewers, working group chairs, and vicechairs of the WWRF who helped us in the reviewing process. We hope this special issue provides opportunities for readers to explore the latest technologies driving wireless ecosystem. In addition, we hope that it can also be a valuable reference for future research and developments and collaborations among researchers, industrial players, academicians, and students. This is a platform that share field experiences as well as discuss new development and concepts, problems, and solutions. Lastly, we thank all the organizations and individuals, especially the editorin-chief and publishing staff of the magazine, for their timely contributions and support.
Author Information Christos Politis received his Ph.D. and M.Sc. degrees from the University of Surrey, United Kingdom, and his B.Eng. degree from the Technical University of Athens, Greece. He is a reader (associate professor) in Wireless Communications at Kingston University London, United Kingdom, Faculty of Computing, Information Systems, and Mathematics. There, he leads a research team on wireless multimedia and networking and teaches modules related to communications. He was the Research and Development project manager at Ofcom, the U.K. Regulator and Competition Authority. There, he managed a number of projects across a wide range of technical areas including cognitive radio, polite protocols, radar, LE applications, fixed wireless, and mobile technologies. His previous positions include telecommunications engineer with Intracom Telecom in Athens, and for many years, he was
a postdoctor research fellow at the Centre for Communication Systems Research at the University of Surrey, United Kingdom. He is the field leader for the Wireless Communications and Networks and Data Communications postgraduate courses at Kingston. He is being active with European research since 2000 and has participated in several EU, national, and international projects. He was the initiator and project manager of the IST UNITE project. He is a patent holder and has published more than 100 papers in international journals and conferences and chapters in two books. He is a Senior Member of the IEEE and a member of the Technical Chamber of Greece. Sudhir Dixit received his Ph.D. degree in electronic science and telecommunications from the University of Strathclyde, Glasgow, Scotland, and an M.B.A. degree from the Florida Institute of Technology, Melbourne, Florida. He is the director of HP Labs India. The principal focus of the laboratory is on creating new technologies to address the information technology needs of the next billion customers of HP, most of them coming from the emerging markets such as India. He was with NYNEX Science and Technology and GTE Laboratories (both now Verizon Communications) from 1987 to 1996. He held a joint appointment as a chief technology officer at the Centre for Internet Excellence and a research manager at the Centre for Wireless Communications at the University of Oulu, Finland. From 1996 to 2008, he held various positions with Nokia and Nokia Siemens Networks in the United States: senior research manager, Nokia research fellow, head of Nokia Research Center (Boston), and head of network technology (USA). He also held the position of senior director at research in motion for a brief period in 2008. He has published more than 200 papers in journals or conferences and edited four books and holds 19 patents. He is on the editorial boards of IEEE Communications Magazine,
IEEE VEHICULAR TECHNOLOGY MAGAZINE | MARCH 2011
Cambridge University Press Wireless Series and Springer’s Wireless Personal Communications Journal, and Central European Journal of Computer Science. He is chair of the Vision Committee and vicechair of the Asia Pacific region of the WWRF. He is also an adjunct professor of computer science at the University of California, Davis, and Docent (adjunct professor of telecommunications) at the University of Oulu, Finland. He is a Fellow of the IEEE (United States of America), IET (United Kingdom), and IETE (India). Victor Leung received his B.A.Sc. degree in electrical engineering from the University of British Columbia (UBC) in 1977 and was awarded the APEBC Gold Medal as the head of the graduating class in the faculty of applied science. He received an
NSERC postgraduate scholarship for graduate studies at the UBC and completed his Ph.D. degree in electrical engineering in 1981. As a faculty member in 1989, he was a lecturer in electronics at the Chinese University of Hong Kong in 1988 and a senior member of technical staff at MPR Teltech in Burnaby in 1981–1987.He is a professor of electrical and computer engineering and holder of the TELUS Mobility Research Chair at the UBC. He leads a group of about 24 researchers contributing to advances in wireless networks and mobile systems and their applications in transportation, health care, and energy management. Most of his research projects involve substantial collaborations with industry and government and have resulted in more than 500 publications in international journals
and conferences and more than 20 book chapters. He is a Fellow of the IEEE and an IEEE ComSoc Distinguished Lecturer. He is also a Fellow of the Engineering Institute of Canada and the Canadian Academy of Engineering. He has served on the editorial boards of many international journals, including IEEE Transactions on Computers, Vehicular Technology, and Wireless Communications, IEEE Journal on Selected Areas in Communications—Wireless Series, Journal of Communications and Networks, and Computer Communications. He has provided leadership to and contributed to the technical program committees of numerous international conferences. He is a registered member of the Association of Professional Engineers and Geoscientists of British Columbia, Canada.
TRANSPORTATION SYSTEMS (continued from page 20) 13 December 2010 to purchase a stake in the signaling equipment manufacturer United Electrical Engineering Plants known as Elteza. This is a subsidiary of Russian Railways (RZD). Initially, BT Signaling B.V. will purchase a 25% stake in Elteza. Following further approval, BT Signaling B.V. will increase its stake to nearly 50%. RZD will remain the majority shareholder. Elteza is Russia’s largest signaling equipment producer with more than 3,000 employees across seven manufacturing sites. The company focuses on the design, development, and production of rail signaling equipment and automatic and remote train control systems, which have been delivered in Russia, the Commonwealth of Independent States (CIS), and the
Baltic states. The new partnership will be one of the first successful example of the privatization of a Russian Railways’ subsidiary and part of the modernization strategy of RZD. Already strong partners in the signaling sector, Bombardier and RZD have had a well-established engineering joint venture, Bombardier Transportation (Signal) Ltd., in operation in Moscow since 1996. This partnership has worked in close cooperation with Elteza to equip more than 90 Russian stations with Bombardier EBI Lock 950 computer-based interlocking (CBI) technology. This new agreement will lead to the creation of an Elteza Department dedicated to new technologies and focusing on the manufacture of products including EBI Lock 950 as
MARCH 2011 | IEEE VEHICULAR TECHNOLOGY MAGAZINE
well as the latest generation of wayside products. Commenting on the announcement, Navarri, the president and COO Andre of Bombardier Transportation, said “This agreement is a landmark for Bombardier Transportation, increasing our already strong presence in the rail control sector in the region and expanding our signaling technology interests.” He added, “We value this opportunity to further develop our presence in Russia but also in CIS and Baltic States.” Completion of this transaction is subject to the approval of all required governmental authorities and to other consents and other usual conditions. The transaction is expected to be completed during the first quarter of 2011.
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