Palestra: Recent Advances in Gigabit Wireless Technology


Title: Recent Advances in Gigabit Wireless Technology
Speaker: Fumiyuki Adachi, Professor
Affiliation: Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, 6-6-05 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan
Place: Anfiteatro UNINOVA
Date: 14:00, January 28, 2011

Abstract: Gigabit wireless technology that can achieve data transmissions of higher-than-1Gbps is demanded. The gigabit wireless channel is severely frequency-selective. Frequency-domain wireless signal processing may play an important role in achieving a good signal transmission performance. However, unfortunately, the available wireless bandwidth is limited. Particular attention is paid to frequency-domain multi-input/multi-output (MIMO) multiplexing to significantly increase the throughput without expanding the signal bandwidth. Besides the gigabit wireless signal processing, another important issue exists. Gigabit data services need prohibitively high transmit power if the present network architecture is employed. A new wireless network that can significantly reduce the transmit power is required. An introduction of distributed antenna network architecture is a promising solution to this issue. In this talk, we will overview the state-of-the-art gigabit wireless technology.

Biography: Fumiyuki Adachi received the B.S. and Dr. Eng. degrees in electrical engineering from Tohoku University, Sendai, Japan, in 1973 and 1984, respectively. In April 1973, he joined the Electrical Communications Laboratories of Nippon Telegraph & Telephone Corporation (now NTT) and conducted various types of research related to digital cellular mobile communications. From July 1992 to December 1999, he was with NTT Mobile Communications Network, Inc. (now NTT DoCoMo, Inc.), where he led a research group on Wideband CDMA for 3G systems. Since January 2000, he has been with Tohoku University, Sendai, Japan, where he is a Professor of Electrical and Communication Engineering at the Graduate School of Engineering. His research interests are in wireless signal processing including wireless access, equalization, transmit/receive antenna diversity, MIMO, adaptive transmission, and channel coding.
He is an IEEE Fellow and an IEICE Fellow. He was a recipient of the IEEE Vehicular Technology Society Avant Garde Award 2000, IEICE Achievement Award 2002, Thomson Scientific Research Front Award 2004, Ericsson Telecommunications Award 2008, The 25th Telecom System Technology Award (March 2010), and Prime Minister Invention Award 2010.