A survey on coexistence between heterogeneous wireless network at 2.4 GHz

PhD Qualifying Examination

Title: "A survey on coexistence between heterogeneous wireless network at 
2.4 GHz"

by

Mr. Xiaonan Guo


Abstract:

Recent years have witnessed the increasing adoption of 802.11/ZigBee 
technology for performance-sensitive applications such as wireless 
environment monitoring in smart building.However, operating in unlicensed 
ISM bands, ZigBee devices share the spectrum resource with 802.11 device 
and some other domestic appliance as well.  This often yield unpredictable 
throughput and high packet lose ratio due to the interference. 
Consequently, coexistence issue among those devices have been paid great 
attention. This problem has been considered both in industry and academia 
and some solutions have been proposed.

In this survey, we firstly give some experiment results to illustrate the 
seriousness of coexistence and introduce some characteristic of IEEE 
802.11 and IEEE 802.15.4. Then we review current solutions in this field 
by top-down approach, and make comparison of different studies. Finally, 
we discuss some challenge and future work direction.


Date:                   Friday, 24 February 2012

Time:                   2:30pm - 4:30pm

Venue:                  Room 4472
                        Lifts 25/26

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


**** ALL are Welcome ****