Analysis of relay handoff algorithms in cooperative diversity systems using absolute and relative measurements of energy gain

Multi-user cooperative diversity is a recently proposed technique, which can improve the performance of wireless communication systems operating in fading environments. Choosing a good partner is important in cooperation and some partner selection methods have been proposed. However, there is no res...

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Bibliographic Details
Published in2009 Canadian Conference on Electrical and Computer Engineering pp. 589 - 592
Main Authors Wei-dang Lu, Xue-jun Sha, Jing-ning Wang, Nai-tong Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2009
Subjects
Algorithm design and analysis
Cooperation diversity
energy gain
Energy measurement
Gain measurement
Hysteresis
MIMO
Performance analysis
Performance gain
Rayleigh channels
relay handoff
relay selection
Relays
user mobility
Wireless communication
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Summary:Multi-user cooperative diversity is a recently proposed technique, which can improve the performance of wireless communication systems operating in fading environments. Choosing a good partner is important in cooperation and some partner selection methods have been proposed. However, there is no research has mentioned how often partners should be reassigned. In this paper, we propose a handoff scheme between relays. In the proposed scheme, handoff is performed when the energy gain of the working relay drops below a threshold and the energy gain of the best relay exceed the energy gain of the working relay by a certain hysteresis level. Simulation results are given to show the performance of the newly proposed scheme.
ISBN:1424435099
9781424435098
ISSN:0840-7789
2576-7046
DOI:10.1109/CCECE.2009.5090198