Title :
MIMO with limited feedback of channel state information
Author_Institution :
Electr. & Comput. Eng. Dept., Lehigh Univ., Bethlehem, PA, USA
Abstract :
Signaling for optimum mutual information with limited feedback of channel state information is studied for the case when multiple transmit and receive antenna arrays are used to form multiple input multiple output channels. A simple mean square error based approach for finding near optimum signaling is suggested and its performance studied. Prior to limiting, the channel estimates are assumed perfect and delay in obtaining these estimates is ignored to focus on the effects of limited feedback.
Keywords :
AWGN channels; MIMO systems; Rayleigh channels; channel estimation; delays; feedback; mean square error methods; receiving antennas; telecommunication signalling; transmitting antennas; MIMO; MIMO channels; Rayleigh fading; additive white Gaussian noise; channel estimation; channel state information feedback; mean square error; multiple input multiple output channels; multiple receive antenna arrays; multiple transmit antenna arrays; signaling; Antenna arrays; Channel state information; Delay effects; Delay estimation; MIMO; Mean square error methods; Mutual information; Output feedback; Receiving antennas; State feedback;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1202548
