Title :
WLC38-5: Multi-Antenna Limited Feedback for Temporally-Correlated Channels: Feedback Compression
Author :
Huang, Kaibin ; Mondal, Bishwarup ; Heath, Robert W., Jr. ; Andrews, Jeffrey G.
Author_Institution :
Wireless Networking & Commun. Group Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
A novel method is proposed for reducing the feedback rate of a transmit beamforming system with feedback of quantized channel state information. Specifically, the channel is modeled as a Markov chain and the feedback bits are compressed by truncating the Markov chain transition probabilities. Using the proposed method, the feedback rate can be compressed by more than 100% without degrading the system performance.
Keywords :
Markov processes; antenna arrays; array signal processing; feedback; probability; quantisation (signal); wireless channels; Markov chain transition probabilities; channel state information quantization; feedback compression; multiantenna; temporal-correlated channel; transmit beamforming system; Array signal processing; Channel state information; Degradation; Delay; Fading; MIMO; Quantization; Shape; State feedback; System performance;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.839
