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Multi-Hop Cooperative Communications using Multi-Relays in IEEE 802.11  

Lee, Sook-Hyoun (성균관대학교 이동통신학과)
Lee, Tae-Jin (성균관대학교 정보통신공학부)
Publication Information
Journal of KIISE:Information Networking / v.36, no.6, 2009 , pp. 528-535 More about this Journal
Abstract
This paper proposes a mechanism to increase performance using cooperative communications in IEEE 802.11 environment. Existing algorithms use one relay between a source and a destination, which is a 2 hop relay. The proposed algorithm utilizes more than one relay to complement inefficiency of using one relay. In the proposed mechanism, an AP manages network information (rate), which is used to select relays of a source by the AP. The AP notifies the selected relays to the source and neighbor nodes, and the source transmits data to the relays for cooperative communications. Moreover, relays are given to have an opportunity to send its own data right after relaying the source's data. So relays are compensated for the power to send the source's data and overall throughput is improved.
Keywords
Cooperative communications; IEEE 802.11; MAC; Throughput;
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