Ordered sphere detector for high rate spatial multiplexing architecture

Author

Li, Jie ; Yang, Yuhang

Author_Institution

Dept. of Electr. Eng., Jiao Tong Univ., Shanghai, China

Volume

2

fYear

2004

fDate

31 May-2 June 2004

Firstpage

417

Abstract

Based on the predecessors´ algorithm of lattice decoder, we further generalized it to signal constellation of any shape, available to both real and complex situation. Such algorithm is nominated as ordered sphere detector (OSD), which has near maximum likelihood (ML) performance with less computation requirement. It can achieve outstanding performance, e.g. supporting high spectral efficiency of 32bits/s/Hz, achieving symbol error rate 10^-3 at SNR 14.5dB. We thoroughly studied the error bound, average running time, error rate of OSD algorithm. Compared with other known methods to solve complex constellation, OSD is both faster and accurate.

Keywords

antenna arrays; codes; maximum likelihood decoding; multiplexing; spectral analysis; SNR; average running time; error bound; lattice code; lattice decoder; maximum likelihood performance; multiple antenna; ordered sphere detector; predecessor algorithm; signal constellation; spatial multiplexing; spectral efficiency; symbol error rate; Antenna theory; Detectors; Error analysis; Lattices; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Random variables; Shape; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on

Print_ISBN

0-7803-7938-1

Type

conf

DOI

10.1109/CASSET.2004.1321912

Filename

1321912