Efficient adaptive receivers for joint equalization and interference cancellation in multiuser space-time block-coded systems

Author

Younis, Waleed M. ; Sayed, Ali H. ; Al-Dhahir, Naofal

Author_Institution

Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA

Volume

51

Issue

11

fYear

2003

fDate

11/1/2003 12:00:00 AM

Firstpage

2849

Lastpage

2862

Abstract

This paper develops low-complexity adaptive receivers for space-time block-coded (STBC) transmissions over frequency-selective fading channels. The receivers are useful for equalization purposes for single user transmissions and for joint equalization and interference cancellation for multiuser transmissions. The receivers exploit the rich code structure of STBC codes in order to deliver recursive-least-squares (RLS) performance at least-mean-squares (LMS) complexity. Besides reduced complexity, the proposed adaptive receivers also lower system overhead requirements.

Keywords

adaptive signal detection; block codes; equalisers; fading channels; interference suppression; least squares approximations; space-time codes; adaptive receivers; equalization; fading channels; interference cancellation; low-complexity receivers; multiuser space-time block-coded systems; recursive-least-squares performance; rich code structure; single user transmissions; system overhead requirements; Adaptive equalizers; Channel state information; Diversity methods; Frequency-selective fading channels; Interference cancellation; Maximum likelihood decoding; OFDM; Receiving antennas; Resonance light scattering; Transmitting antennas;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2003.818209

Filename

1237414