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CORR
2011
Springer
184views Education» more  CORR 2011»
12 years 11 months ago
Broadcast Channels with Delayed Finite-Rate Feedback: Predict or Observe?
Most multiuser precoding techniques require accurate transmitter channel state information (CSIT) to maintain orthogonality between the users. Such techniques have proven quite fr...
Jiaming Xu, Jeffrey G. Andrews, Syed Ali Jafar
ICASSP
2008
IEEE
14 years 2 months ago
Relation between joint optimizations for multiuser MIMO uplink and downlink with imperfect CSI
Joint linear minimum sum mean-squared error (referred to as MSMSE) transmitter and receiver (transceiver) optimization problems are formulated for multiuser MIMO systems under a s...
Minhua Ding, Steven D. Blostein
ICASSP
2009
IEEE
13 years 11 months ago
A MIMO channel perturbation analysis for robust bit loading
In narrowband multiple-input multiple-output (MIMO) communication systems, when the channel state information (CSI) is known perfectly at the transmitter and the receiver, techniq...
Michael D. Larsen, A. Lee Swindlehurst
CORR
2008
Springer
69views Education» more  CORR 2008»
13 years 7 months ago
Two Models for Noisy Feedback in MIMO Channels
Two distinct models of feedback, suited for FDD (Frequency Division Duplex) and TDD (Frequency Division Duplex) systems respectively, have been widely studied in the literature. In...
Vaneet Aggarwal, Gajanana Krishna, Srikrishna Bhas...
PIMRC
2010
IEEE
13 years 5 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