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dc.contributor.authorWang, Li-Chunen_US
dc.contributor.authorYeh, Chu-Jungen_US
dc.contributor.authorLi, Chi-Fangen_US
dc.date.accessioned2014-12-08T15:02:52Z-
dc.date.available2014-12-08T15:02:52Z-
dc.date.issued2008en_US
dc.identifier.isbn978-1-4244-1996-8en_US
dc.identifier.issn1525-3511en_US
dc.identifier.urihttp://hdl.handle.net/11536/1475-
dc.description.abstractBesides delivering high data rates in a point-to-point scenario, multi-input multi-output (MIMO) antenna techniques can broadcast personalized data to multiple users in the point-to-multipoint scenario. Zero-forcing beamforming (ZFB) is a suboptimal but simple MIMO broadcast technique, which basically decouple the MIMO channel into many parallel single-input single-output (SISO) channels. In this article, we first derive the closed-form expression for the sum rate of the ZFB MIMO broadcast system with random user selection. Secondly, under the condition with finite users, we develop a virtual user approach approximation method for estimating the sum rate of the ZFB MIMO broadcast system with exhaustive user selection. Our results indicate that the proposed analysis method can accurately estimate the optimal sum-rate throughput of ZFB.en_US
dc.language.isoen_USen_US
dc.subjectMIMO systemsen_US
dc.subjectzero-forcing beam-formingen_US
dc.subjectschedulingen_US
dc.subjectMIMO broadcast channelsen_US
dc.titleA closed-form approximation for capacity of multiuser MIMO broadcast systems: A virtual user approachen_US
dc.typeProceedings Paperen_US
dc.identifier.journalWCNC 2008: IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-7en_US
dc.citation.spage408en_US
dc.citation.epage412en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.identifier.wosnumberWOS:000259411100072-
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