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ICC
2007
IEEE
167views Communications» more  ICC 2007»
15 years 3 months ago
Precoding for Multiuser Orthogonal Space-Time Block-Coded OFDM: Mean or Covariance Feedback?
Abstract— This paper presents precoding design for errorrate improvement in closed-loop multiuser orthogonal space-time block-coded (OSTBC) multiple-input multiple-output (MIMO) ...
Yu Fu, Witold A. Krzymien, Chintha Tellambura
ICASSP
2011
IEEE
14 years 1 months ago
Grassmannian predictive coding for limited feedback multiuser MIMO systems
Grassmannian beamforming is an efficient way to quantize channel state information in multiple-input multiple-output wireless systems. Unfortunately, multiuser systems require la...
Takao Inoue, Robert W. Heath Jr.
DCC
2009
IEEE
15 years 10 months ago
The Posterior Matching Feedback Scheme for Joint Source-Channel Coding with Bandwidth Expansion
When transmitting a Gaussian source over an AWGN channel with an input power constraint and a quadratic distortion measure, it is well known that optimal performance can be obtain...
Ofer Shayevitz, Meir Feder
CDC
2010
IEEE
116views Control Systems» more  CDC 2010»
14 years 4 months ago
A stochastic control approach to coding with feedback over degraded broadcast channels
In this paper we attempt to further demonstrate connections between information theory and control, in a networked setting. Specifically, we consider the communication problem of b...
Siva K. Gorantla, Todd P. Coleman
TCOM
2008
101views more  TCOM 2008»
14 years 9 months ago
Transmit beamforming for space-frequency coded MIMO-OFDM systems with spatial correlation feedback
Abstract--This paper addresses the problem of joint optimization of transmit beamforming and space-frequency (SF) coding for MIMO-OFDM systems with spatial correlation feedback in ...
Ahmed K. Sadek, Weifeng Su, K. J. Ray Liu