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Capacity of Multiuser Diversity with Cooperative Relaying in Wireless Networks  

Joung, Hee-Jin (연세대학교 대학원 전기전자공학과 ACEM Lab)
Mun, Cheol (국립 충주대학교 전기전자정보공학부)
Seo, Jeong-Tae (국립 충주대학교 전기전자정보공학부)
Yoo, Kang-Hee (국립 충주대학교 전기전자정보공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.6C, 2008 , pp. 423-428 More about this Journal
Abstract
We consider the use of cooperative diversity in a multiuser wireless data network. This paper provides an analysis of the interaction between cooperative diversity and multiuser diversity on downlink channels. By using approximation of the signal-to-noise ratio (SNR) distribution of each cooperative diversity link by Gamma distribution, an analytic expression is derived for the average throughput of a single-cell wireless system with multiple cooperative diversity links combined with a fair-access scheduler. The proposed analytic approach is verified through comparisons with simulated results and shows that cooperative diversity makes the detrimental impacts on multiuser diversity.
Keywords
Diversity methods; Cooperative diversity; Multiuser diversity; Scheduling; System capacity;
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