Joint Base Station and Relay Precoder Design with Relay Local Channel State Information for Multi-relay Aided Multi-user All-MIMO System 


Vol. 37,  No. 6, pp. 405-419, Jun.  2012


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  Abstract

In this paper, we propose a joint base station(BS) and relay precoders design in multi-relay aided multi-user all-multiple-input multiple-output(MIMO) system. The design criterion is to minimize user sum mean square error(SMSE) with relay sum power constraint(RSPC) where only local channel state information(CSI)s are available at relays. Local CSI at a relay is defined as the CSI of the channel which the relay itself accesses, out of among all the 1st hop and the 2nd hop channel in the system. With BS precoder structure which is concatenated with block diagonalization(BD) precoder, each relay can determine its own precoder using only local CSI. Proposed scheme is based on sequential iteration of two stages; stage 1 determines BS precoder and relay precoders jointly with SMSE duality, and stage 2 determines user receivers. Proposed scheme can be demonstrated theoretically to be always converge. We verify that proposed scheme outperforms simple amplify-and-forward(SAF), MMSE relay, and proposed schemes in [1] in terms of both SMSE and sum-rate performances.

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  Cite this article

[IEEE Style]

Y. Cho, S. Jang, D. K. Kim, "Joint Base Station and Relay Precoder Design with Relay Local Channel State Information for Multi-relay Aided Multi-user All-MIMO System," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 6, pp. 405-419, 2012. DOI: .

[ACM Style]

Young-Min Cho, Seungjun Jang, and Dong Ku Kim. 2012. Joint Base Station and Relay Precoder Design with Relay Local Channel State Information for Multi-relay Aided Multi-user All-MIMO System. The Journal of Korean Institute of Communications and Information Sciences, 37, 6, (2012), 405-419. DOI: .

[KICS Style]

Young-Min Cho, Seungjun Jang, Dong Ku Kim, "Joint Base Station and Relay Precoder Design with Relay Local Channel State Information for Multi-relay Aided Multi-user All-MIMO System," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 6, pp. 405-419, 6. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880