Multi-Access MIMO Systems with Finite Rate Channel State Feedback

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dc.creatorDai, Wei
dc.creatorRider, Brian
dc.creatorLiu, Youjian
dc.date2007-05-16
dc.date.accessioned2026-07-07T08:16:05Z
dc.date.available2026-07-07T08:16:05Z
dc.descriptionThis paper characterizes the effect of finite rate channel state feedback on the sum rate of a multi-access multiple-input multiple-output (MIMO) system. We propose to control the users jointly, specifically, we first choose the users jointly and then select the corresponding beamforming vectors jointly. To quantify the sum rate, this paper introduces the composite Grassmann manifold and the composite Grassmann matrix. By characterizing the distortion rate function on the composite Grassmann manifold and calculating the logdet function of a random composite Grassmann matrix, a good sum rate approximation is derived. According to the distortion rate function on the composite Grassmann manifold, the loss due to finite beamforming decreases exponentially as the feedback bits on beamforming increases.
dc.description10 pages. In Proc. Allerton Conf. on Commun., Control, and Computing, 2005
dc.identifierhttps://arxiv.org/abs/0705.2270
dc.identifierhttp://arxiv.org/abs/0705.2270
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133659
dc.subjectInformation Theory
dc.titleMulti-Access MIMO Systems with Finite Rate Channel State Feedback
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