A generalized lattice decoder for asymmetrical space-time communication architecture

Author

Damen, Mohamed Oussama ; Abed-Meraim, Karim ; Belfiore, Jean-Claude

Author_Institution

ENST de Paris, France

Volume

5

fYear

2000

fDate

2000

Firstpage

2581

Abstract

We present a generalized sphere decoding (GSD) algorithm and its application for detecting information symbols in the case where one has a system with more inputs (symbols) than outputs or the opposite situation. We study the special case of a multi-antenna scenario in a cellular system with N antennas at the mobile and M⩾N antennas at the base station. GSD reaches the maximum likelihood (ML) performance for both up and down link with a moderate complexity

Keywords

cellular radio; computational complexity; maximum likelihood decoding; mobile antennas; radio links; signal detection; algorithm complexity; asymmetrical space-time communication architecture; base station antennas; cellular system; down link; generalized lattice decoder; generalized sphere decoding algorithm; information symbols detection; maximum likelihood performance; mobile antennas; multiple antennas; up link; Base stations; Constellation diagram; Equations; Lattices; Maximum likelihood decoding; Maximum likelihood detection; Mobile antennas; Rayleigh channels; Transmitters; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on

Conference_Location

Istanbul

ISSN

1520-6149

Print_ISBN

0-7803-6293-4

Type

conf

DOI

10.1109/ICASSP.2000.860987

Filename

860987