Four-Group Decodable Semi-Orthogonal Algebraic Space-Time Block Codes

Author

Dung Ngoc Dao;Chintha Tellambura;Chau Yuen;Tjeng Thiang Tjhung;Yong Liang Guan

Author_Institution

Dept. of ECE, Alberta Univ., Edmonton, Alta.

fYear

2007

fDate

3/1/2007 12:00:00 AM

Firstpage

588

Lastpage

593

Abstract

The rate-one semi-orthogonal algebraic space-time (SAST) codes is recently introduced. In this paper, the authors propose a new signal design method for SAST codes so that the transmitted symbols can be divided into four groups for maximum likelihood (ML) detection; the authors call this new design of SAST codes four-group decodable SAST (4Gp-SAST) codes. The decoding complexity of 4Gp-SAST codes is greatly reduced compared with that of the original SAST codes, where the ML decoding of the transmitted symbols is made into two groups. The exact pair-wise error probability of 4Gp-SAST codes is derived and it is used to optimize the signal designs. Simulation results show that 4Gp-SAST codes perform better than several low complexity space-time block codes such as orthogonal and quasi-orthogonal codes.

Keywords

"Block codes","Maximum likelihood decoding","Transmitting antennas","Maximum likelihood detection","Signal design","Pairwise error probability","Quadrature amplitude modulation","Communications Society","Space technology","Design optimization"

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE

ISSN

1525-3511

Print_ISBN

1-4244-0658-7

Type

conf

DOI

10.1109/WCNC.2007.114

Filename

4224359