Low-complexity maximum-likelihood decoder for four-transmit-antenna quasi-orthogonal space-time block code

Author

Le, Minh-Tuan ; Pham, Van-Su ; Mai, Linh ; Yoon, Giwan

Author_Institution

Sch. of Eng., Inf. & Commun. Univ., Taejon, South Korea

Volume

53

Issue

11

fYear

2005

Firstpage

1817

Lastpage

1821

Abstract

This letter proposes a very low-complexity maximum-likelihood (ML) detection algorithm based on QR decomposition for the quasi-orthogonal space-time block code (QSTBC) with four transmit antennas, called the LC-ML decoder. The proposed algorithm enables the QSTBC to achieve ML performance with significant reduction in computational load for any high-level modulation scheme.

Keywords

MIMO systems; antenna arrays; block codes; computational complexity; diversity reception; maximum likelihood decoding; space-time codes; transmitting antennas; MIMO system; four-transmit antenna; low-complexity maximum likelihood decoder; multiple-input multiple-output; quasi-orthogonal space-time block code; wireless communication; Amplitude modulation; Block codes; Diversity reception; MIMO; Maximum likelihood decoding; Maximum likelihood detection; Random variables; Receiving antennas; Transmitting antennas; Wireless communication; Diversity; maximum-likelihood (ML) detection; multiple-input multiple-output (MIMO); space–time coding; wireless communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2005.858688

Filename

1532477