A Survey on Performance Enhancement in Wireless Networks by exploiting PHY techniques

PhD Qualifying Examination


Title: "A Survey on Performance Enhancement in Wireless Networks by exploiting
PHY techniques"

by

Mr. Jiansong Zhang


Abstract:

The demands for wireless networking are increased more and more quickly 
nowadays. Under these huge demands, the study of performance 
enhancement/optimization is always an important research direction. In 
recent years, with the adoption of advanced PHY techniques and the help of 
powerful Software Defined Radio platforms, researchers in the computer 
networking field have been able to exploit alternatives in PHY design to 
optimize/enhance the whole wireless network performance in a cross layer 
(PHY with MAC or even higher layer) manner.

In this survey, discussions of research works are aligned with advanced 
PHY technology, i.e. OFDM and MIMO. First, besides the traditional 
consideration in time domain, frequency domain has been added in the scope 
of the research. Specifically, expanded optimization by considering 
flexibility in frequency domain, efficiency enhancement for CSMA MAC and 
the introduced dynamic spectrum access in WLANs are discussed. Second, 
multiple radio interfaces on a single device has been a technical trend. 
Research works along this trend includes performance optimization of MIMO 
network, application of MIMO-like techniques and other novel PHY design 
such as single channel full duplex radio. Finally, other PHY innovations, 
e.g. SoftPHY and directional antenna are also discussed.


Date:                   Friday, 8 June 2012

Time:                   2:00pm - 4:00pm

Venue:                  Room 3501
                         lifts 25/26

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


**** ALL are Welcome ****