Optimum space-time processors with symbol-rate sampling are bandlimited

Author

Kalbasi, Reza ; Falconer, David D. ; Banihashemi, Amir H.

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada

Volume

54

Issue

5

fYear

2006

fDate

5/1/2006 12:00:00 AM

Firstpage

1936

Lastpage

1941

Abstract

This correspondence considers the problem of joint transmitter and receiver design for multiple-input multiple-output (MIMO) channels under the mean-square error (MSE) criterion when the system is not necessarily bandlimited. It is proven that the optimum space-time filters are strictly bandlimited to a frequency set. The aggregated bandwidth of this set is at most the number of the substreams times symbol rate. The optimal frequency sets corresponding to different substreams are disjoint, if two maximum channel eigenmodes are not equal for the same Nyquist translate.

Keywords

MIMO systems; bandlimited communication; filtering theory; mean square error methods; MIMO channels; MSE criterion; aggregated bandwidth; mean-square error criterion; multiple-input multiple-output; optimum space-time filters; optimum space-time processors; receiver; symbol-rate sampling; transmitter; Bandwidth; Channel state information; Filters; Frequency division multiaccess; Frequency estimation; Information analysis; MIMO; Sampling methods; Transmitters; Transmitting antennas; Bandwidth optimization; FDMA; multiple-input multiple-output (MIMO); pre-equalization; precoding; space–time processing; transmitter–receiver optimization;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2006.872603

Filename

1621423