IEEE Seminar Announcement
| Title: | Collaborative Reception and Interference Excision |
| Speaker: | John Shea, Ph.D. Dept. of Electrical and Computer Engineering University of Florida Gainesville, FL |
| Date: | Mon. Oct. 13, 2003 |
| Time: | 4-5 PM |
| Location: | ESB G39, WVU Evansdale Campus |
Abstract: In this talk, I will give a brief overview overview of cross-layer research on wireless communications at the University of Florida. I will then provide a more detailed discussion of new collaborative reception techniques developed by our group. These techniques take advantage of the broadcast nature of wireless channels. A group of radios that can receive a common signal collaborate with each other to facilitate the recovery of the signal.
We show that iterative processing can be used to improve performance while reducing the overhead in comparison to traditional combining techniques. The techniques that we propose use soft-input, soft-output decoders to identify which information needs to be exchanged among the collaborating receivers. These techniques can identify the presence of jamming or the reliability of the received symbols or bit decisions. We show that collaborative reception techniques can provide diversity in fading channels and can be used to mitigate the effects of interference or hostile jamming.
Speaker Bio:John M. Shea (S'92-M'99) received the B.S (with highest honors) in Computer Engineering from Clemson University in 1993 and the M.S. and Ph. D. degrees in electrical engineering from Clemson University in 1995 and 1998, respectively.
Dr. Shea is currently an assistant professor of electrical and computer engineering at the University of Florida. Prior to that, he was a post-doctoral research fellow at Clemson University from January 1999 to August 1999. He was a research assistant in the Wireless Communications Program at Clemson University from 1993 to 1998. He is currently engaged in research on wireless communications with emphasis on cross-layer research, collaborative communications and signal processing, turbo coding and iterative decoding, and ad hoc networks.
Dr. Shea received the Ellersick Award from the IEEE Communications Society in 1996. He is an Associate Editor for IEEE Transacations on Vehicular Technology and a member of Tau Beta Pi and Phi Kappa Phi.