PhD Qualifying Examination


"A Survey on Cognitive Networking for Spectrum Management in Open
Spectrum"

Mr. Juncheng Jia


Abstract:

Radio spectrum resource is of fundamental importance for wireless
communication. Recent reports show that almost all spectrums are
allocated. With the increasingly crowed usage in unlicensed band, most of
them are underutilized. Such spectrum utilization inefficiency mostly
comes from the current fixed spectrum management policy. This situation
draws quite a lot of attentions from government, academy and industry. The
concept of open spectrum is proposed for more flexible use of spectrum,
which is made possible now by the cognitive radio. Protection of primary
users, efficient and fair spectrum sharing among secondary users are two
basic requirements of open spectrum systems. In this survey, we take an
overview of the current proposals for new spectrum management models in
open spectrum framework. We summarize key challenges in several aspects
for cognitive networking, such as power control, channel assignment and
cognitive MAC, etc. Existing solutions and our considerations are
presented for each of these aspects.


Date:     		Tuesday, 30 January 2007

Time:                   10:00a.m.-12:00noon

Venue:                  Room 3304
			lifts 17-18

Committee Members:      Dr. Qian Zhang (Supervisor)
			Dr. Bo Li (Chairperson)
			Dr. Gary Chan
			Prof. Mounir Hamdi


**** ALL are Welcome ****