Professor William C.Y. Lee served as Honorary Dean of School of Advanced Communications, Peking University, China. He was Chairman of LinkAir Communications, Inc. from 2000-2005. He was Vice President and Chief Scientist of Pactel, then AirTouch, then Vodafone-AirTouch, then Vodafone from 1985-2000.
Dr. Lee was one of the pioneers in developing advanced wireless technology ― AMPS ― at Bell Labs (1964-1979). His UHF mobile radio propagation model is known as the Lee Model. While he worked at Pactel, he was elected as co-chair of ARTS Committee of CTIA in selecting the second-generation (2G) cellular system for USA (1987-1988). He advocated CDMA technology. He funded, technical assisted and provided the spectrum for Qualcomm to develop it in 1989. Under his leadership, the first CDMA phone call was completed in Los Angeles in 1995.
Dr. Lee is the inventor of Microcell, his patented Microcell System was deployed in Los Angeles and San Diego in 1990. Dr. Lee has published more than 300 articles and eight technical books on mobile communications. He holds 30 U.S. patents, with 2 in pending. He received many prestigious industry awards including CDMA Industry Achievement Award and IEEE The third Millennium Medal Award.

Shannon has laid the foundation for a fantastic research race in optimizing the physical layer over the last 50 years. Major advances have been made, leaving little room for improvement for achieving the capacity of links. However, new challenges are facing us today, which require us to review the optimization strategy which our community has been following.
For this reason, an overview of new challenges will be given which we are facing today. This shows that a parallel set of new research trades are to be carried out, with many open questions to be answered over the coming years.

Gerhard Fettweis earned his PhD degree from Aachen University of Technology (RWTH) in 1990. He is IEEE Fellow, and active in organizing conferences (e.g. IEEE ICC 2009) and workshops. From 1990 to 1991, he was Visiting Scientist at the IBM Almaden Research Center in San Jose, CA, developing signal processing innovations for IBM’s disk drive products. From 1991 to 1994, he was a Scientist with TCSI Inc., Berkeley, CA, responsible for signal processor development projects for cellular phone chip-sets. Since 1994, he holds the Vodafone Chair at Technische Universität Dresden, Germany. During this time, the chair has spunout eight start-ups: Systemonic, Radioplan, Signalion, InCircuit, Dresden Silicon, Freedelity, RadioOpt, Blue Wonder Communications.

The classic Shannon-Hartley law suggests that the achievable channel capacity increases logarithmically with the transmit power. By contrast, the MIMO capacity increases linearly with the number of transmit antennas, provided that the number of receive antennas is equal to the number of transmit antennas. With the further proviso that the total transmit power is increased proportionately to the number of transmit antennas, a linear capacity increase is achieved upon increasing the transmit power, which justifies the spectacular success of MIMOs... Or does it?

Lajos Hanzo (http://www-mobile.ecs.soton.ac.uk) FREng, FIEEE, FIET, DSc received his degree in electronics in 1976 and his doctorate in 1983. During his 34-year career in telecommunications he has held various research and academic posts in Hungary, Germany and the UK. Since 1986 he has been with the School of Electronics and Computer Science, University of Southampton, UK, where he holds the chair in telecommunications. He has co-authored 19 John Wiley - IEEE Press books on mobile radio communications totalling in excess of 10 000, published 684 research papers at IEEE Xplore, acted as TPC Chair of IEEE conferences, presented keynote lectures and been awarded a number of distinctions. Currently he is directing an academic research team, working on a range of research projects in the field of wireless multimedia communications sponsored by industry, the Engineering and Physical Sciences Research Council (EPSRC) UK, the European IST Programme and the Mobile Virtual Centre of Excellence (VCE), UK. He is an enthusiastic supporter of industrial and academic liaison and he offers a range of industrial courses. He is also an IEEE Distinguished Lecturer as well as a Governor of both the IEEE ComSoc and the VTS. He is the acting Editor-in-Chief of the IEEE Press. For further information on research in progress and associated publications please refer to http://www-mobile.ecs.soton.ac.uk

A Next Generation Network (NGN) has been developed in Taiwan, where IP Multimedia Subsystem (IMS) plays an important role to offer IP-based multimedia services. Such NGN/IMS networks have also been deployed worldwide. However, details of commercial-grade NGN service implementations are seldom reported in public. In this paper, we show how existing video phone service can be enhanced through Chunghwa Telecom’s NGN/IMS. Specifically, we illustrate three examples including Multimedia on Demand (MOD) TV, Multimedia Ringback Tone (MRBT) and Easy Go (EzGo). We also measure the delay times for accessing these services. The measurements indicate that performance for these IMS-based services is satisfactory.

Prof. Yi-Bing Lin is Dean and Chair professor of College of Computer Science, National Chiao Tung University (NCTU), Taiwan. He is a senior technical editor of IEEE Network. He serves on the editorial boards of IEEE Trans. on Vehicular Technology. He is General and Program Chairs for prestigious conferences including ACM MobiCom 2002. He is Guest Editor for several journals including IEEE Transactions on Computers and IEEE JSAC. Lin is the authors of three books Wireless and Mobile Network Architecture (Wiley, 2001), Wireless and Mobile All-IP Networks (John Wiley,2005), and Charging for Mobile All-IP Telecommunications (Wiley, 2008). Lin received numerous research awards including IBM Faculty Award, 2005 NSC Distinguished Researcher and 2006 Academic Award of Ministry of Education. Lin is an IEEE Fellow, ACM Fellow, an AAAS Fellow, and an IET Fellow.