Performance of BLAST over frequency-selective wireless communication channels

Author

Boubaker, Nejib ; Letaief, Khaled ; Ross, D.M.

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China

Volume

50

Issue

2

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

196

Lastpage

199

Abstract

Currently one of the most promising techniques for realizing high spectral efficiencies over wireless links is Vertical-Bell Laboratories Layered Space-Time (V-BLAST). This technique employs multi-element antenna arrays at both the transmitter and receiver to increase the spectral efficiency. In contrast to previous work, we consider the performance of V-BLAST in a frequency-selective fading channel. In particular, we investigate the effect of delay spread on V-BLAST with various QAM modulation formats and different numbers of transmit and receive antennas for two types of delay spread distributions. Comparisons with a flat-fading channel are also provided

Keywords

antenna arrays; array signal processing; delays; fading channels; multipath channels; quadrature amplitude modulation; radio links; receiving antennas; transmitting antennas; BLAST; QAM formats; Vertical-Bell Laboratories Layered Space-Time; delay spread; delay spread distributions; flat-fading channel; frequency-selective fading channel; frequency-selective wireless communication channels; high spectral efficiency; multi-element antenna arrays; multipath; processing architecture; receive antennas; receiver; transmit antennas; transmitter; wireless links; Antenna arrays; Antenna theory; Delay effects; Frequency; Frequency-selective fading channels; Receiving antennas; Scattering; Transmitters; Transmitting antennas; Wireless communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.983316

Filename

983316