On MIMO channel capacity: an intuitive discussion

Author

Stoica, Petre ; Jiang, Yi ; Li, Jian

Author_Institution

Dept. of Syst. & Control, Uppsala Univ., Sweden

Volume

22

Issue

3

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

83

Lastpage

84

Abstract

For a general MIMO communication channel, the use of the linear minimum mean-squared-error (LMMSE) estimator followed by the separate substream decoding is not a capacity-wise optimal scheme. In this paper, the author presents analytical computations of the MIMO channel capacity. The article relates the capacity to the covariance matrix of the LMMSE estimate that provides a clear interpretation of the concept of capacity as well some optimal transceiver design schemes that aim to achieve channel capacity.

Keywords

MIMO systems; channel capacity; covariance matrices; least mean squares methods; receiving antennas; transceivers; transmitting antennas; MIMO channel capacity; MIMO communication channel; covariance matrix; linear minimum mean-squared-error; multiple-input multiple-output; receive antenna; transceiver design scheme; transmit antenna; Baseband; Channel capacity; Channel state information; Covariance matrix; Gaussian noise; MIMO; Mutual information; Receiving antennas; Symmetric matrices; Transmitters;

fLanguage

English

Journal_Title

Signal Processing Magazine, IEEE

Publisher

ieee

ISSN

1053-5888

Type

jour

DOI

10.1109/MSP.2005.1425912

Filename

1425912