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Bandwidth-Efficient Mutually Cooperative Relaying with Spatially Coordinate-Interleaved Orthogonal Design  

Ryu, Hyun-Seok (고려대학교 전파공학과 무선정보시스템공학 연구실)
Kang, Chung-G. (고려대학교 전파공학과 무선정보시스템공학 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.11A, 2009 , pp. 815-821 More about this Journal
Abstract
In this paper, we propose a new type of mutually cooperative relaying (MCR) scheme based on a spatially coordinate-interleaved orthogonal design (SCID), in which two cooperative users are spatially multiplexed without bandwidth expansion. It provides not only diversity gain (with order of two) as in the existing MCR scheme, but also additional coding gain. Our simulation results demonstrate that the proposed SCID scheme is useful for improving the uplink performance as long as one user can find another active user as a close neighbor that is simultaneously communicating with the same destination, e.g., a base station in the cellular network.
Keywords
Cooperative Diversity; Mutually Cooperative Relay; Coordinate-Interleaved Orthogonal Design (CIOD);
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