Aug 28, 2013 - IEEE VEHICULAR TECHNOLOGY MAGAZINE | SEPTEMBER 2013. Marcos Katz ... theme reflects the advanced smart city developments in the ...
Marcos Katz, Vinod Kumar, and Widad Ismail
From the Guest Editors
30th Wireless World Research Forum
T
he 30th Wireless World Research Forum (WWRF) was held in Oulu, Finland, on 23–25 April 2013 and was hosted by the University of Oulu. The theme of the meeting was smart cities, and a Smart Cities Workshop was held on 24 April. The meeting theme reflects the advanced smart city developments in the host city, which was selected one of the world’s top seven intelligent communities in 2012 and 2013. Plenary and working group sessions were also organized. The meeting brought together participants from industry, academia, and research institutes, as well as regulators and policy makers. During the initial plenary sessions, the forum discussed relevant technical aspects of current and future wireless and mobile communications technologies, including the following invited talks: “Future and Emerging Technologies That May Shape the Year 2050,” “Troubleshooting Current and Future Networks,” “Do We Need More Spectrum for Mobile Systems?,” and “Network Coding: A Powerful Technique for the Cloud Communications Era.” The Smart Cities Workshop provided a broad view of recent developments in this field. The workshop had four sessions devoted to different aspects of smart cities: ■■ Session I: General Aspects and Visions on Smart Cities Digital Object Identifier 10.1109/MVT.2013.2269196 Date of publication: 28 August 2013
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High-profile
invited speakers from all over the world presented their views and engaged the audience in lively discussions. Session II: Regional Views ■■ Session III: Industrial Views and Visions ■■ Session IV: Research and TestBeds. High-profile invited speakers from all over the world presented their views and engaged the audience in lively discussions. A session called “Validation of Cognitive Radio Technology in Finland” presented several test beds and live demonstrations of ongoing research and development initiatives in the host country. Moreover, there was a world first during this event when the authorized shared access (ASA) operational network was demonstrated, using a long-term evolution (LTE) network operating in the 2.3-GHz band. Four articles were selected and reviewed to be published in this issue of IEEE Vehicular Technology Magazine. In “Cognitive Radio Trial Environment: First Live Authorized Shared Access Based Spectrum-Sharing Demonstration,” Matinmikko et al. discuss a cognitive radio trial environment consisting of LTE and wireless open-access research platform (WARP) radio networks and the cognitive engines needed to manage the system. They demonstrate both load-balancing and spectrum-sharing ■■
techniques. For the latter, the world’s first demonstration of ASA is presented, and measurement results are included. Practical results on quality of service, throughput, and fairness are presented. In general, the article shows that cooperative resource sharing outperforms conventional (noncooperative) approaches. Continuing with the subject of cognitive radio, in the article “Shaping Spectral Leakage: A Novel LowComplexity Transceiver Architecture for Cognitive Radio,” Bala et al. propose a novel low-complexity transceiver architecture exploiting transmit and receive pulse shaping (i.e., windowing) aimed at reducing spectral leakage and rejecting adjacent channel interference. The performance of the proposed scheme is evaluated and compared with other multicarrier modulation approaches. As a whole, the proposed pulse-shaped orthogonal frequency division multiplex (OFDM) scheme offers a good balance between performance and complexity, resulting in an attractive and spectral-efficient solution. The third article in this magazine deals with visions of future communication networks. In the article “5G on the Horizon: Key Challenges for the Radio Access Network,”
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Demestichas et al. discuss key characteristics, requirements, and challenges of future wireless and mobile networks. Trends and the vision of the so-called Wireless World 2020 are identified and discussed. The authors also discuss promising emerging technologies that are needed to tackle the identified challenges. In “Tailored Security: Building Nonrepudiable Security ServiceLevel Agreements,” Takahashi et al. propose a mechanism implementing accountable security by using a security service-level agreement defining the security level of a given provided service. Typical use cases where security is highly relevant for users include online service access, either with fixed or mobile networks. The security mechanisms consist of three key components, namely, security expression, translation, and negotiation techniques. The authors demonstrate the feasibility of the security mechanism with a prototype. Additional information on WWRF, the activities of the four working groups, recent publications, related workshops, and forthcoming meetings can be found at the new Web site: www.wwrf.ch.
Author Information Marcos Katz received the B.S. degree in electrical engineering from Universidad Nacional de Tucumán, Argentina, in 1987, and the M.S. and Dr. Tech. degrees in electrical engineering from the University of Oulu, Finland, in 1995 and 2002, respectively. He worked as a research engineer at Nokia Telecommunications from 1987 to 1995, designing analog circuits for high-speed plesiochronous/synchronous digital hierarchy (PDH/SDH) line interfaces. From 1995 to 2001, he was a senior research engineer at Nokia Networks, Finland, working with multiple antenna techniques for several time division multiple access and code division multiple access (CDMA) research projects. From 2001
to 2002, he was a research scientist at the Centre for Wireless Communications, University of Oulu, Finland, where he worked on synchronization problems of CDMA networks. From 2003 to 2005, he was the principal engineer at the Samsung Electronics Advanced Research Lab, Telecommunications R&D Center, Suwon, Korea, working on multiple-input, multiple-output, visible light communications, and cooperative networking technologies. From 2006 to 2009, he was a chief research scientist at VTT, the Technical Research Centre of Finland, leading the Cognitive and Cooperative Networks Research Group. In December 2009, he was appointed professor at the Centre for Wireless Communications, University of Oulu. Currently, he is working on mobile clouds and optical communications. From 2006 to 2007, he served as the vice chair of Working Group 5 (on short-range communications) for the WWRF, and from 2008 to 2012, he was the chair of that group. He has published more than 100 technical publications, holds more than 30 granted patents, and is the coeditor and coauthor of five books in the field of wireless communications. Vinod Kumar has more than 30 years of R&D experience in mobile communication systems. During the 22 years of his tenure at AlcatelLucent, he initiated and contributed to multiple research projects in global system for mobile communications (GSM), general packet radio service (GPRS), enhanced data rate for GSM evolution (EDGE), universal mobile telecommunications system (UMTS), and in wireless ad-hoc networking. Additionally, he has been involved in standardization, marketing support activities, and patent management. He has participated in multiple international collaborative projects (EC FP6, FP7) and has been a technical auditor of CELTIC and ANR projects. He represents ALU in WWRF and has held a secretary
september 2013 | IEEE vehicular technology magazine
position since its foundation in 2001. His academic activities include teaching graduate courses in mobile communications at ENST, SUPELEC, ISEP, and EURECOM in France. He has been a member of the industrial advisory board of CTIF Denmark and Conseil Technique of SUPELECFrance. He has been a referee for IEEE publications and a Ph.D. examiner. He has published more than 50 technical publications and has obtained 25 patents. Currently, he is the director of global academic partnerships in the Chief Scientist Office organization of ALU Bell Labs. Widad Ismail is an associate professor and a project coordinator for Auto-ID Laboratory, Universiti Sains Malaysia. She received her B.Eng.(H) with first class honors in electronics and communications engineering from the University of Huddersfield, United Kingdom, in 1999, where she was the first female engineer to graduate with first class honors. In 2004, she received the Ph.D. degree in electronics and communication engineering with a focus on active integrated antennas (AIA) with image rejection from the University of Birmingham, United Kingdom. She was a postgraduate teaching assistant at the University of Birmingham from 2000 to 2003 and has been a lecturer at the Universiti Sains Malaysia since 2004. Her main areas of research are wireless system design, radio frequency identification, AIA, and RF and microwave systems engineering. She has received numerous awards, publications, and patents. She is a principal investigator of 16 research grants with the value of more than US$1.06 million. These research works have produced 12 filed patents, ten international awards, four commercialized main research products, and more than 80 publications, including international journal papers, conferences/seminars, and other publications. She is a Member of the IEEE and WWRF.
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