The reduction of linear receivers complexity in ovelapped Alamouti code family

Author

Shahabinejad, Mostafa ; Bidaki, S.S.H. ; Talebi, Sahar ; Abasi, S.

Author_Institution

Dept. of Electr. Eng., Shahid Bahonar Univ. of Kerman, Kerman, Iran

fYear

2011

fDate

17-19 May 2011

Firstpage

1

Lastpage

1

Abstract

Linear receivers, due to their simpler decoding in comparison with maximum likelihood (ML) receiver, are of great importance. In recent years, the codes such as Toeplitz codes, overlapped Alamouti codes (OACs), and group orthogonal Toeplitz codes (GOTCs) are designed based on the linear receivers decoding. This paper completely explains the zero-forcing (ZF) and the minimum mean square error (MMSE) receivers of the OACs for different numbers of transmit antennas and different numbers of used symbols in each space-time matrix code. It also proposes a method that decreases the complexity of the ZF and the MMSE linear receivers of the OACs without sacrificing the system performance. It is explained that the proposed simplicity method especially gets very effective by increasing the symbol transmission rate.

Keywords

communication complexity; least mean squares methods; maximum likelihood decoding; receivers; space-time codes; MMSE receiver; group orthogonal Toeplitz code; linear receiver complexity reduction; linear receiver decoding; maximum likelihood receiver; minimum mean square error receiver; ovelapped alamouti code family; space-time matrix code; symbol transmission rate; linear receivers; minimum mean square error (MMSE); multi-input multi-output (MIMO); overlapped Alamouti code; space-time coding; zero-forcing (ZF);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2011 19th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4577-0730-8

Type

conf

Filename

5955764