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Article: Cooperative precoding with limited feedback for MIMO interference channels

TitleCooperative precoding with limited feedback for MIMO interference channels
Authors
Issue Date2012
Citation
IEEE Transactions on Wireless Communications, 2012, v. 11 n. 3, p. 1012-1021 How to Cite?
AbstractMulti-antenna precoding effectively mitigates the interference in wireless networks. However, the resultant performance gains can be significantly compromised in practice if the precoder design fails to account for the inaccuracy in the channel state information (CSI) feedback. This paper addresses this issue by considering finite-rate CSI feedback from receivers to their interfering transmitters in the two-user multiple-input-multiple-output (MIMO) interference channel, called cooperative feedback, and proposing a systematic method for designing transceivers comprising linear precoders and equalizers. Specifically, each precoder/equalizer is decomposed into inner and outer components for nulling the cross-link interference and achieving array gain, respectively. The inner precoders/equalizers are further optimized to suppress the residual interference resulting from finite-rate cooperative feedback. Furthermore, the residual interference is regulated by additional scalar cooperative feedback signals that are designed to control transmission power using different criteria including fixed interference margin and maximum sum throughput. Finally, the required number of cooperative precoder feedback bits is derived for limiting the throughput loss due to precoder quantization. © 2012 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/194352
ISSN
2015 Impact Factor: 2.925
2015 SCImago Journal Rankings: 2.340
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHuang, K-
dc.contributor.authorZhang, R-
dc.date.accessioned2014-01-30T03:32:29Z-
dc.date.available2014-01-30T03:32:29Z-
dc.date.issued2012-
dc.identifier.citationIEEE Transactions on Wireless Communications, 2012, v. 11 n. 3, p. 1012-1021-
dc.identifier.issn1536-1276-
dc.identifier.urihttp://hdl.handle.net/10722/194352-
dc.description.abstractMulti-antenna precoding effectively mitigates the interference in wireless networks. However, the resultant performance gains can be significantly compromised in practice if the precoder design fails to account for the inaccuracy in the channel state information (CSI) feedback. This paper addresses this issue by considering finite-rate CSI feedback from receivers to their interfering transmitters in the two-user multiple-input-multiple-output (MIMO) interference channel, called cooperative feedback, and proposing a systematic method for designing transceivers comprising linear precoders and equalizers. Specifically, each precoder/equalizer is decomposed into inner and outer components for nulling the cross-link interference and achieving array gain, respectively. The inner precoders/equalizers are further optimized to suppress the residual interference resulting from finite-rate cooperative feedback. Furthermore, the residual interference is regulated by additional scalar cooperative feedback signals that are designed to control transmission power using different criteria including fixed interference margin and maximum sum throughput. Finally, the required number of cooperative precoder feedback bits is derived for limiting the throughput loss due to precoder quantization. © 2012 IEEE.-
dc.languageeng-
dc.relation.ispartofIEEE Transactions on Wireless Communications-
dc.titleCooperative precoding with limited feedback for MIMO interference channels-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TWC.2012.011812.110063-
dc.identifier.scopuseid_2-s2.0-84858340474-
dc.identifier.volume11-
dc.identifier.issue3-
dc.identifier.spage1012-
dc.identifier.epage1021-
dc.identifier.isiWOS:000301509200018-

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