A Full Diversity Full Rate 4-Antenna Alamouti Code

Author

Bai, Wei ; Fu, Jingxing ; Kim, Younghak

Author_Institution

Beijing Samsung Telecom R&D Center

Volume

1

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

72

Lastpage

76

Abstract

4-antenna Alamouti code has been regarded as an effective transmit diversity scheme in existing and/or upcoming wireless communication systems for its simplicity and its compatibility with orthogonal 2-antenna Alamouti code. In this paper, an improved 4-antenna Alamouti code is presented. The new code can achieve full diversity through constellation rotation, thus it outperforms the original 4-antenna Alamouti code significantly. In addition, the optimal receiver for the new code can decouple the ML decoder of four symbols into two ML decoders of two symbols, leading to low decoding complexity. This paper also presents simulation and analysis results demonstrating the advantages of the improved 4-antenna Alamouti code

Keywords

antenna arrays; computational complexity; diversity reception; maximum likelihood decoding; ML decoder; antenna Alamouti code; decoding complexity; transmit diversity scheme; wireless communication systems; AWGN; Analytical models; Decoding; Rayleigh channels; Receiving antennas; Research and development; Space time codes; Telecommunications; Transmitting antennas; Wireless communication; Alamouti´s code; complexity; constellation rotation; space-time block codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

Conference_Location

Berlin

Print_ISBN

9.7838007291e+012

Type

conf

DOI

10.1109/PIMRC.2005.1651401

Filename

1651401