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Conference Paper: Joint power control and beamforming for sum-rate maximization in multiuser MIMO downlink channels

TitleJoint power control and beamforming for sum-rate maximization in multiuser MIMO downlink channels
Authors
Zheng, GNg, TSWong, KK
Issue Date2006
Citation
Globecom - Ieee Global Telecommunications Conference, 2006 How to Cite?
DOI: http://dx.doi.org/10.1109/GLOCOM.2006.678
AbstractThis paper addresses the problem of maximizing the sum-rate with a total power constraint for a multiuser multiple-input multiple-output (MIMO) antenna system in the downlink using generalized beamforming. Channel state information at the transmitter (CSIT) and the receivers (CSIR) is assumed available. An iterative approach is proposed which alternates between optimizing the power allocation, transmit antenna vectors and receive antenna vectors using a combination of geometric programming (GP), signomial programming (SP), uplink-downlink duality and minimum mean-square-error (MMSE) receiver optimization. It is proved that the sum-rate in the proposed scheme has a monotonic increasing property and hence the algorithm is convergent. Simulation results show that this algorithm can significantly increase the sum-rate compared with a zero-forcing solution. © 2006 Crown Copyright.
Persistent Identifierhttp://hdl.handle.net/10722/158548
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorZheng, Gen_US
dc.contributor.authorNg, TSen_US
dc.contributor.authorWong, KKen_US
dc.date.accessioned2012-08-08T09:00:12Z-
dc.date.available2012-08-08T09:00:12Z-
dc.date.issued2006en_US
dc.identifier.citationGlobecom - Ieee Global Telecommunications Conference, 2006en_US
dc.identifier.urihttp://hdl.handle.net/10722/158548-
dc.description.abstractThis paper addresses the problem of maximizing the sum-rate with a total power constraint for a multiuser multiple-input multiple-output (MIMO) antenna system in the downlink using generalized beamforming. Channel state information at the transmitter (CSIT) and the receivers (CSIR) is assumed available. An iterative approach is proposed which alternates between optimizing the power allocation, transmit antenna vectors and receive antenna vectors using a combination of geometric programming (GP), signomial programming (SP), uplink-downlink duality and minimum mean-square-error (MMSE) receiver optimization. It is proved that the sum-rate in the proposed scheme has a monotonic increasing property and hence the algorithm is convergent. Simulation results show that this algorithm can significantly increase the sum-rate compared with a zero-forcing solution. © 2006 Crown Copyright.en_US
dc.languageengen_US
dc.relation.ispartofGLOBECOM - IEEE Global Telecommunications Conferenceen_US
dc.titleJoint power control and beamforming for sum-rate maximization in multiuser MIMO downlink channelsen_US
dc.typeConference_Paperen_US
dc.identifier.emailNg, TS:tsng@eee.hku.hken_US
dc.identifier.authorityNg, TS=rp00159en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/GLOCOM.2006.678en_US
dc.identifier.scopuseid_2-s2.0-50949100685en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-50949100685&selection=ref&src=s&origin=recordpageen_US
dc.identifier.scopusauthoridZheng, G=16176882900en_US
dc.identifier.scopusauthoridNg, TS=7402229975en_US
dc.identifier.scopusauthoridWong, KK=7404759940en_US

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