Thursday, 9 December 2010
17:20 - 18:30

Challenges and Future Prospect of 4G Wireless:
The Operators’ View

(Organizer and Chair: Dr. Chia-Chin Chong, NTT DOCOMO USA Labs, USA)


Next generation mobile broadband wireless networks such as 3GPP LTE/LTE-Advanced and Mobile WiMAX/IEEE 802.16m have been envisioned as the 4G mobile technologies. Both standards were submitted to ITU-R as candidates’ technology for the IMT-Advanced. The advantages based on throughput, latency, spectral efficiency, and advanced antenna support, ultimately enabling them to provide higher performance than today’s 3G wireless technologies.

Coverage improvement and capacity enhancement are always the essential requirements for wireless broadband networks in order to deliver cost-effective wireless services. Due to significant loss of signal strength along the propagation path especially at higher frequency and the transmit power constraint of mobile terminals, the sustainable coverage area for a specific high data rate is often of limited geographical size. In addition, blocking and random fading frequently result in areas of poor reception or even dead spot within the coverage region especially in-building scenario. Moreover, due to the higher demand for good quality multimedia mobile applications, such as video streaming and video-on-demand, capacity enhancement is a must for the next generation cellular networks.

Recently, the concepts of femtocells and fixed mobile convergence (FMC) have received a lot of attention among the industrials. Both femtocells and FMC capabilities can be used to overcome poor indoor cellular quality and capacity of a system in a cost effective fashion. The emerging femtocell option is aimed at those who live and work in places where the macrocellular network coverage is limited and want to use their conventional single-mode cellular phones. Users need to have a femtocell, similar to a WiFi access point, in order to boost signals throughout their home or office. On the other hand, FMC combines WiFi and cellular technologies for those with dual-mode cellular phones. This allows users to roam seamlessly between their internal WiFi network and cellular network. FMC capabilities can be used to avoid in-building cellular charges if a private WiFi network is already in place.

In this panel, industry experts from leading mobile operators will discuss the challenges ahead of full scale commercialization of IMT-Advanced technology including tug-of-war among competitive standards (e.g., LTE vs Mobile WiMAX, femtocells vs FMC) and future prospect of 4G (e.g., killer applications and services).


Dr. Chia-Chin Chong
Senior Researcher, NTT DOCOMO USA Labs, USA


Chia-Chin Chong is a Senior Research Staff Member at NTT DOCOMO USA Labs in Palo Alto, CA. Prior to joining NTT DOCOMO, she spent about 2 years at Samsung Electronics R&D. Her research interests include 4G cellular systems, wireless home energy managment and mobile wellness applications. She is an active participant and contributor in the IEEE 802.15, IEEE 802.16, and ITU-R WP 5D standardization activities. Dr. Chong has been an invited speaker and panelist in many international seminars and symposiums. She has authored a book chapter and published more than 80 international journals, conference papers, and international standard contributions. She also has more than 30 granted and pending patents.

Dr. Chong received the Joseph Higham Prize and the GEC-Marconi Prize from The University of Manchester in 2000 for academic excellence and outstanding performance. She also awarded the IEE Prize and the IEE Vodafone Research Award in 1999 and 2001, respectively, the Richard Brown Scholarship from The University of Edinburgh in 2002, the IEEE International Conference on Ultra-Wideband (ICUWB) Best Paper Award and the DOCOMO USA Labs President Award in 2006, as well as the URSI Young Scientist Award and the DOCOMO USA Labs President Award in 2008. Dr. Chong was honored with The Outstanding Young Malaysian Award 2006 (the most prestigious achievement award for people under age 40 in Malaysia) by Junior Chamber Internationalه and Ministry of Youth and Sports, Malaysia under the category “Scientific and Technological Development”.

Currently, Dr. Chong serves as an Editor for the IEEE Transactions on Wireless Communications and the Associate Editors for IEEE Transactions on Vehicular Technology and EURASIP Journal on Wireless Communications and Networking (JWCN). She has served as the Lead Guest-Editor for the Special Issue on “Millimeter Wave Wireless Communication Systems” in the EURASIP JWCN and the Guest Editor for the Special Issue on “Cooperative Localization in Wireless Ad hoc and Sensor Networks” in the EURASIP Journal on Applied Signal Processing. Dr. Chong has also served on the TPC of various international conferences, the TPC Co-Chair for the Broadband Wireless Access Symposium of the IEEE ICCCN 2007, the TPC Co-Chair for the Wireless Communications Symposium of the IEEE ICC 2008, the Publicity Co-Chair for the IEEE PIMRC 2008, the Sponsorship Chair for the CrownCom 2008, and the Tutorial Chair for the IEEE ICCCN 2009. She was also the Former Chair for the DG-EVAL Channel Model standardization group within the ITU-R WP5D for IMT systems. She is the Senior Member of the IEEE.

Dr. Dawei Zhang
Director of Wireless, China Mobile USA Research Center, China


Dr. Dawei Zhang is the Director of Wireless, China Mobile USA Research Center, where he is responsible for China Mobile’s next generation wireless technologies and TD LTE product strategies and requirements. On behalf of China Mobile, he is the Chairman of the NGMN Trial Workgroup, where he is responsible for global operators’ LTE trial requirements and evaluations.

Dr. Zhang received his Ph.D. in Physics from UCLA. He was a Post-doctoral Fellow with MIT, and spent over 15 years in Silicon Valley working on various wireless technologies and systems. Prior to joining China Mobile, Dr. Zhang was the General Manager of Wireless Broadband Group R&D, and Director of Base Stations at UTStarcom Inc., where he was responsible for wireless base station R&D on mobile WiMAX, TD CDMA, WCDMA RRU, and advanced PHS base stations.

Dr. Zhang holds 7 US and international patents, and over 60 refereed journal and conference publications on wireless and related technology areas.

Dr. Hiroyuki Atarashi

Manager of Radio System Group in Radio Access Network Development Department in NTT DOCOMO, INC.
Dr. Hiroyuki Atarashi is a Manager of Radio System Group in Radio Access Network Development Department in NTT DOCOMO, INC. He received the B.E., M.E. and Ph.D. degrees in electrical engineering from Keio University, Japan, in 1994, 1996, and 1999 respectively. In 1999 he joined NTT DOCOMO, INC. and has been working for research, standardization and development of next-generation mobile communication systems. Since 2006, he has been engaged in the standardization activities for IMT systems in ITU-R.


Mr. Bernard Le Floch
Senior Research Expert, Orange Labs, France


Mr. Bernard Le Floch is Senior Research Expert and Research Program Leader on Access Technologies within Orange Labs. He received an engineering degree from Ecole Nationale Supडrieure des Tडlडcommunications de Bretagne in 1982. He joined the CCETT (common research centre of France Tडlडcom and Tडlडdiffusion de France) in the mid 80s where he was involved in the first developments of the OFDM technology. As active member of the EUREKA147 DAB (Digital Audio Broadcasting) project, he was appointed as Chairman of the joint ETSI/EBU project team which produced the DAB standard. In 1994-1995, he was heading the ACTS dTTb project Working Party 3 (digital Terrestrial Television broadcasting), in charge of the definition of the DVB-T system. He is now responsible for the coordination of the upstream research activities of France Tडlडcom in the field of transmission technologies over copper, optics and radio, including mobile telecommunication systems as well as broadcast systems. Bernard Le Floch is currently chairing the ARTIST4G project, funded by the European Commission, which aims at developing advanced technologies for the future evolutions of the 3GPP LTE-Advanced standard.

Richard Chin
President, SK Telecom Americas, USA

Mr. Richard Chin leads SK Telecom's globalization via M&A activities, strategic investments and partnerships, and ventures. In addition to developing a U.S. market entrance strategy, Richard leads development in organic growth engine solutions as well as new business opportunities in and outside of the telecom industry.
Prior to joining SK Telecom, Richard held senior executive positions at Motorola, including Corporate Vice President of Global Product Marketing and Business Ventures & Development. Richard has also held senior positions at Searle Pharmaceuticals, NutraSweet Company, Kraft Foods, and Accenture. Richard holds a JD from John Marshall Law School and a Bachelor's Degree from the University of Chicago.


Dr. Kalyani Bogineni
Principal Architect, Verizon Communications, USA


Dr. Kalyani Bogineni is Principal Architect at Verizon Communications with extensive experience in architecture and design of telecommunications networks for wireless and wireline technologies as well as various application technologies. She has published extensively in IEEE/ACM peer-reviewed Journals and Conferences. She has been on the Technical Program Committee for several Conferences, and has been a reviewer for various IEEE Journals and Magazines for over 20 years. She is an active Speaker on next generation converged networks at various Conferences and Panels. Recently she has been active in the development of 3GPP standards for 4G technologies focused on the development of converged networks for multiple access technologies with IP-based mobility management mechanisms, policy-driven roaming architectures, and converged security architectures. She has B.Tech and M.E. degrees in Electrical Engineering, M.S. degree in Computer Engineering and Ph.D. in Electrical and Computer Engineering.