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  1. 專題演講IEEE VTS Distinguished Lecture Relaying and Cognitive Radio for Wireless Communications 時 間 : 103年 8月 26日(星期二) 下午 16:30~18:00 地 點 : 國立臺灣大學資訊工程系101室 演講者 : Dr. Jae Hong Lee, IEEE Fellow, Seoul National University Abstract Mobile data traffic is growing rapidly as the number of smart devices, such as smartphones and tablets, increases. To meet the quality of service (QoS) for them, it requires higher reliability and spectral efficiency in next generation wireless communications. Relaying and cognitive radio are candidate technologies to achieve them. Relaying improves reliability by providing additional paths for data transmission. It has been adopted in the standards of wireless cellular networks such as LTE-Advanced and WiMAX2. Cognitive radio improves spectral efficiency in which an unlicensed user utilizes the spectrum of a licensed user opportunistically. It has been adopted in the standard of wireless regional area network (WRAN) such as IEEE 802.22. In the first part of the talk, the concept of relaying and cognitive radio for wireless communications is introduced. The second part consists of some research results: a new transmission protocol for multi-hop networks and its performance, and the performance analysis of an asynchronous cognitive radio network. Biography Jae Hong Lee received BS and MS degrees from Seoul National University, Korea, and PhD from the University of Michigan at Ann Arbor in 1986. He was with AT&T Bell Laboratories as Member of Technical Staff from 1991 to 1992. He joined Seoul National University in 1987 where he is currently a professor and served as Chairman of EECS Department and Director of Institute of New Media and Communications. His research activities are in physical layer wireless communications such as MIMO, OFDM, cooperative diversity, and cognitive radio, and their applications to B4G/5G wireless systems. He served as chairman of the committee for coordination of 3G wireless communication technology development in Korea and was principal investigator in communications for ITS Grand Design Project of the Korean government from 1994 to 1997. His laboratory was designated as a National Leading Research Laboratory by Ministry of Science and Technology of Korea. He was President of IEEE Vehicular Technology Society, Institute of Electronics Engineers of Korea, and Korean Society of Broadcast Engineers. He is an IEEE Fellow and IEEE VT Society Distinguished Lecturer. He is a Member of the Korean Academy of Science and Technology and the National Academy of Engineering of Korea. 【主辦單位】 IEEE Vehicular Technology Society (VTS) Taipei Chapter 【協辦單位】 中國電機工程學會 國立臺灣大學資訊工程系暨研究所、網媒所 IEEE Communications Society Taipei and Tainan Chapters