Title :
Improving orthogonal space-time block codes by utilizing quantized feedback information
Author :
Jöngren, George ; Skoglund, Mikael
Author_Institution :
Signal Process., R. Inst. of Technol., Stockholm, Sweden
Abstract :
We propose a transmission scheme which utilizes vector quantized channel information obtained from a feedback link for improving a space-time code. The result is a transmission method which provides robustness to the non-perfect nature of the channel information while combining the benefits of conventional beamforming with those given by space-time coding
Keywords :
MIMO systems; array signal processing; block codes; channel coding; feedback; radio links; vector quantisation; MIMO wireless communication system; VQ; beamforming; channel coding; feedback link; nonperfect channel information; orthogonal space-time block codes; quantized feedback information; transmission method; vector quantized channel information; Antenna measurements; Array signal processing; Block codes; Broadband antennas; Covariance matrix; Current measurement; Error probability; Feedback; MIMO; Maximum likelihood decoding;
Conference_Titel :
Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-7123-2
DOI :
10.1109/ISIT.2001.936083
