506 search results - page 32 / 102 » Comments on Broadcast Channels |
145
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ICASSP
2010
IEEE
15 years 6 months ago
2010
IEEE
In this paper, a single antenna downlink channel with K users is analyzed in the presence of Rayleigh flat fading. A limited channel state information (CSI) feedback scheme is co...
204
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PIMRC
2010
IEEE
15 years 4 months ago
2010
IEEE
In a multiuser system, independent time-varying channels among different users can be exploited to provide multiuser diversity (MUD) gain and increase the system throughput. For th...
166
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CISS
2007
IEEE
16 years 15 days ago
2007
IEEE
—Network coding and cooperative diversity have each extensively been explored in the literature as a means to substantially improve the performance of wireless networks. Yet, lit...
169
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GLOBECOM
2008
IEEE
15 years 7 months ago
2008
IEEE
Abstract—This paper investigates the zero-forcing (ZF) beamforming transmit strategy in the multiple-antenna multiuser downlink systems. We consider the case of mobile users equi...
140
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ICC
2007
IEEE
16 years 15 days ago
2007
IEEE
Abstract— This paper proposes the opportunistic power allocation (OPA) scheme for random beamforming with a limited feedback rate. Without the channel state information, the prop...