Characterization of MIMO channels for spatial multiplexing systems

Author

Heath, Robert W., Jr. ; Paulraj, Arogyaswami

Author_Institution

Inf. Syst. Lab., Stanford Univ., CA, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

591

Abstract

Future wireless systems will employ multiple antennas at both transmitter and receiver to take advantage of large capacity gains. Two competing spatial modulation techniques for such systems are multiplexing, for high spectrum efficiency; and diversity, for high reliability. In this paper we show that the Demmel (1988) condition number of a MIMO (multiple-input multiple-output) channel characterizes its suitability for multiplexed transmission, over diversity transmission, based on a minimum Euclidean distance comparison. We examine the probability of obtaining channels suitable for multiplexing as a function of constellation, rate, and number of antennas, for i.i.d. flat-fading Rayleigh matrix channels

Keywords

MIMO systems; Rayleigh channels; diversity reception; modulation; probability; receiving antennas; space division multiplexing; transmitting antennas; Demmel condition number; MIMO channels; capacity gain; constellation; diversity transmission; high reliability; high spectrum efficiency; i.i.d. flat-fading Rayleigh matrix channels; minimum Euclidean distance; multiple receiver antennas; multiple transmitter antennas; multiple-input multiple-output channel; multiplexed transmission; probability; rate; spatial modulation; spatial multiplexing systems; wireless systems; Euclidean distance; Fading; Information systems; MIMO; Mobile antennas; Receiving antennas; Robustness; Space time codes; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.937008

Filename

937008