Optimal partial feedback design for MIMO block fading channels with feedback capacity constraint

Author

Lau, Vincent K N ; Liu, Youjian ; Chen, Tai-Ann

Author_Institution

Lucent Technol. Bell Labs., USA

fYear

2003

fDate

29 June-4 July 2003

Firstpage

65

Abstract

In this paper, we focus in investigating the optimal MIMO transmission and the optimal feedback strategies for MIMO link capacity when the feedback link is causal and has a capacity constraint. We show that the design of the optimal feedback scheme is identical to the design of vector quantizer (Lloyd´s algorithm) with a modified distortion measure. In the general case, the optimal feedback strategy has a general form of power water-filling cascaded with beamforming matrix as well.

Keywords

MIMO systems; antenna arrays; array signal processing; channel capacity; distortion measurement; fading channels; vector quantisation; Lloyd´s algorithm; MIMO link capacity; MIMO transmission; beamforming matrix; block fading channel; distortion measurement; feedback capacity constraint; feedback link; optimal partial feedback design; power water-filling; vector quantizer; Algorithm design and analysis; Antenna measurements; Channel capacity; Design engineering; Distortion measurement; Fading; MIMO; Receiving antennas; State feedback; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2003. Proceedings. IEEE International Symposium on

Print_ISBN

0-7803-7728-1

Type

conf

DOI

10.1109/ISIT.2003.1228079

Filename

1228079