communication over interference in wireless networks

PhD Thesis Proposal Defence


Title: "communication over interference in wireless networks"

by

Mr. Kaishun Wu


Abstract:

Interference is a critical issue in wireless communications. In a typical 
multiple-user environment, different users may severely interfere with 
each other. Coordination among users therefore is an indispensable part 
for interference management in wireless networks. It is known that, 
coordination among multiple nodes is a costly operation taking a 
significant amount of valuable communication resource. We have an 
interesting observation that by generating intended patterns, some 
simultaneous transmissions, i.e., “interference”, can be successfully 
decoded without degrading the effective throughput in original 
transmission. As such, an extra and “free” coordination channel can be 
built. Based on this idea we propose a DC-MAC to leverage this “free” 
channel for efficient medium access in a multiple-user wireless network. 
We theoretically analyze the capacity of this channel under different 
environments with various modulation schemes. USRP2-based implementation 
experiments show that compared with the widely adopted CSMA, DC-MAC can 
improve the channel utilization efficiency by up to 250%.


Date:  			Thursday, 25 November 2010

Time:           	10:30am - 12:30pm

Venue:          	Room 3405
 			lifts 17/18

Committee Members:      Prof. Lionel Ni (Supervisor)
 			Prof. Qian Zhang (Chairperson)
 			Dr. Lei Chen
 			Dr. Lin Gu


**** ALL are Welcome ****