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» A Broadcasting Relay for Orthogonal Multiuser Channels
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IWCMC
2009
ACM
13 years 11 months ago
Multiple-antenna multiple-relay system with precoding for multiuser transmission
Multi-hop relaying will play a central role in next generation wireless systems. In this paper a novel relaying strategy that uses multiple-input multiple-output (MIMO) relays in ...
Arash Talebi, Witold A. Krzymien
PIMRC
2010
IEEE
13 years 2 months ago
A multi-threshold scheme for feedback load reduction in multiuser MIMO broadcast channel
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...
Jin-Hao Li, Hsuan-Jung Su, Yu-Lun Tsai
TWC
2008
87views more  TWC 2008»
13 years 4 months ago
Opportunistic Grassmannian Beamforming for Multiuser and Multiantenna Downlink Communications
Scheduling in a broadcast channel based on partial channel-state-information at the transmitter is carried out in an opportunistic way. In this paper, the number of generated beams...
Nizar Zorba, Ana I. Pérez-Neira
TWC
2010
12 years 11 months ago
Relay selection and power allocation in cooperative cellular networks
We consider a system with a single base station communicating with multiple users over orthogonal channels while being assisted by multiple relays. Several recent works have sugge...
Sachin Kadloor, Raviraj Adve
GLOBECOM
2006
IEEE
13 years 10 months ago
Optimal Resource Allocation via Geometric Programming for OFDM Broadcast and Multiple Access Channels
Abstract— For multi-user orthogonal frequency division multiplexing (OFDM) systems, efficient optimal rate and power allocation algorithms are presented via geometric programmin...
Kibeom Seong, David D. Yu, Youngjae Kim, John M. C...