Multiple-Symbol Differential Detection:V-BLAST vs. Sphere Decoding

Author

Ahmadi, Malihe ; Mehr, Aryan Saadat

Author_Institution

Univ. of Saskatchewan, Saskatoon

fYear

2007

fDate

22-26 April 2007

Firstpage

333

Lastpage

335

Abstract

Multiple-symbol differential detection (MSDD) has been used to detect transmitted data over Rayleigh fading channels without channel state information by jointly processing groups of N received symbols to detect N-1 data symbols. By increasing the value of N, the probability of error would be decreased but search space for the maximum-likelihood (ML) estimator would be increased as well, so a low complexity algorithm is of great desire. In this letter we compare the complexity and performance of V-BLAST vs. sphere decoding and one low complexity SD algorithm.

Keywords

decoding; differential detection; maximum likelihood estimation; probability; space-time codes; N-1 data symbols; Rayleigh fading channels; V-BLAST; maximum-likelihood estimator; multiple-symbol differential detection; sphere decoding; AWGN; Channel state information; Computational modeling; Detectors; Differential quadrature phase shift keying; Fading; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2007. CCECE 2007. Canadian Conference on

Conference_Location

Vancouver, BC

ISSN

0840-7789

Print_ISBN

1-4244-1020-7

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2007.89

Filename

4232748