您的位置 : 题目：A Short Overview of Underwater Acoustic Communications
时间：2013年12月31日星期二上午10：00
地点：信电楼215会议室
报告人：Prof. Shengli Zhou
University of Connecticut
Abstract:
Recently there has been mounting interest in developing underwater wireless sensor networks (UWSNs), as they can offer significant advantages in a wide spectrum of aquatic applications. However, UWSNs are significantly different from the conventional terrestrial sensor network technology, as radio communications do not work well under the water and acoustic signalling has to be used.
Underwater acoustic channels are far more complex than radio channels due to long delay spread and large Doppler variation. This talk will first present an overview of different acoustic communication techniques and then focuses on the application of multicarrier modulation in underwater acoustic communications. In particular, this talk will describe two important receiver modules: compressive sensing based sparse channel estimation and progressive mitigation of intercarrier interference (ICI).
The last part of this talk will describe recent development towards a commercial high-data-rate underwater acoustic modem.
Bio:
Shengli Zhou received the B.S. degree in 1995 and the M.Sc. degree in 1998, from the University of Science and Technology of China (USTC), Hefei, both in electrical engineering and information science. He received his Ph.D. degree in electrical engineering from the University of Minnesota (UMN), Minneapolis, in 2002. He is now a full professor with the Department of Electrical and Computer Engineering at the University of Connecticut (UCONN), Storrs. He has held a United Technologies Corporation (UTC) Professorship in Engineering Innovation, 2008-2011, and the Charles H. Knapp Associate Professor in Electrical Engineering, 2012-2013.
His general research interests lie in the areas of wireless communications and signal processing. His recent focus is on underwater acoustic communications and networking. Dr. Zhou has served as an Associate Editor for IEEE Transactions on Wireless Communications, 2005-2007, for IEEE Transactions on Signal Processing, 2008-2010, and now is an associate editor for IEEE Journal of Oceanic Engineering. He received the 2007 ONR Young Investigator award and the 2007 Presidential Early Career Award for Scientists and Engineers (PECASE), which is the highest honor in the United States for professionals at the outset of their scientific research careers. He is a member of the Connecticut Academy of Science and Engineering (CASE), and has been recently elected to IEEE Fellow.
