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VTC
2008
IEEE
160views Communications» more  VTC 2008»
14 years 1 months ago
Reducing Feedback Requirements of the Multiple Weight Opportunistic Beamforming Scheme via Selective Multiuser Diversity
—Opportunistic beamforming (OB) relies on the transmission of Channel State Information (CSI) in the form of instantaneous Signal to Noise Ratio (SNR) from Mobile Stations (MSs) ...
Marios Nicolaou, Angela Doufexi, Simon Armour
TCOM
2008
76views more  TCOM 2008»
13 years 7 months ago
Multi-user selection diversity for spread-spectrum multi-carrier multiple-access systems
Recently, Multi-User Selection Diversity (MUSDiv) for single-carrier systems has been under extensive study on account of the enhancement it provides to system performance with min...
Petros L. Katsis, George K. Karagiannidis, Fotini-...
ICC
2007
IEEE
14 years 1 months ago
Optimal Precoder for Rate 1 Space-Time Block Codes
Abstract— Despite primary space-time coding where the channel state information (CSI) is available at the receiver only, the capacity and performance of multiple-input multiple-o...
Alireza Ghaderipoor, Chintha Tellambura
JSAC
2008
106views more  JSAC 2008»
13 years 7 months ago
Enhanced multiuser random beamforming: dealing with the not so large number of users case
We consider the downlink of a wireless system with an M-antenna base station and K single-antenna users. A limited feedback-based scheduling and precoding scenario is considered th...
Marios Kountouris, David Gesbert, Thomas Sälz...
ICC
2007
IEEE
145views Communications» more  ICC 2007»
14 years 1 months ago
Adaptive vs. Diversity Transmission for Multiuser MISO Systems with Imperfect CSIT
Abstract— Adaptive transmission techniques including transmit beamforming, precoding, and opportunistic scheduling offer high spectral efficiency when channel state information ...
Frederick K. H. Lee, Mai H. Vu, Arogyaswami Paulra...