File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Conference Paper: Cooperative feedback for MIMO interference channels

TitleCooperative feedback for MIMO interference channels
Authors
Issue Date2011
Citation
Conference Record - Asilomar Conference on Signals, Systems and Computers, 2011, p. 1314-1318 How to Cite?
AbstractMulti-antenna precoding effectively mitigates the interference in wireless networks. However, the precoding efficiency can be significantly degraded by the overhead due to the required feedback of channel state information (CSI). This paper addresses such an issue by proposing a systematic method of designing precoders for the two-user multiple-input-multiple-output (MIMO) interference channels based on finite-rate CSI feedback from receivers to their interferers, called cooperative feedback. Specifically, each precoder is decomposed into inner and outer precoders for nulling interference and improving the data link array gain, respectively. The inner precoders are further designed to suppress residual interference resulting from finite-rate cooperative feedback. To regulate residual interference due to precoder quantization, additional scalar cooperative feedback signals are designed to control transmitters' power using different criteria including applying interference margins, maximizing sum throughput, and minimizing outage probability. Simulation shows that such additional feedback effectively alleviates performance degradation due to quantized precoder feedback. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/194363
ISSN

 

DC FieldValueLanguage
dc.contributor.authorHuang, K-
dc.contributor.authorZhang, R-
dc.date.accessioned2014-01-30T03:32:30Z-
dc.date.available2014-01-30T03:32:30Z-
dc.date.issued2011-
dc.identifier.citationConference Record - Asilomar Conference on Signals, Systems and Computers, 2011, p. 1314-1318-
dc.identifier.issn1058-6393-
dc.identifier.urihttp://hdl.handle.net/10722/194363-
dc.description.abstractMulti-antenna precoding effectively mitigates the interference in wireless networks. However, the precoding efficiency can be significantly degraded by the overhead due to the required feedback of channel state information (CSI). This paper addresses such an issue by proposing a systematic method of designing precoders for the two-user multiple-input-multiple-output (MIMO) interference channels based on finite-rate CSI feedback from receivers to their interferers, called cooperative feedback. Specifically, each precoder is decomposed into inner and outer precoders for nulling interference and improving the data link array gain, respectively. The inner precoders are further designed to suppress residual interference resulting from finite-rate cooperative feedback. To regulate residual interference due to precoder quantization, additional scalar cooperative feedback signals are designed to control transmitters' power using different criteria including applying interference margins, maximizing sum throughput, and minimizing outage probability. Simulation shows that such additional feedback effectively alleviates performance degradation due to quantized precoder feedback. © 2011 IEEE.-
dc.languageeng-
dc.relation.ispartofConference Record - Asilomar Conference on Signals, Systems and Computers-
dc.titleCooperative feedback for MIMO interference channels-
dc.typeConference_Paper-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/ACSSC.2011.6190229-
dc.identifier.scopuseid_2-s2.0-84861302904-
dc.identifier.spage1314-
dc.identifier.epage1318-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats