Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.860987
