A New Full-Rate Orthogonal Space-Time Block Coding Scheme Based on Quaternion

Author

Zhang, Lei ; Lei, Haipeng ; Zhang, Butong ; Zhang, Xin ; Yang, Dacheng

Author_Institution

Dept. of Wireless Theories & Technol., Beijing Univ. of Posts & Telecommun.

fYear

2007

fDate

22-25 April 2007

Firstpage

525

Lastpage

528

Abstract

This paper introduces a full rate, full diversity orthogonal space-time block code for 4 transmit antennas. The4times4 codeword matrix consists of four 2times2 Alamouti blocks, and these blocks can be viewed as quaternions which in turn represent rotations in R³. The Alamouti blocks that appear in a codeword are drawn from the icosahedral group. The code is no constellation expansion unlike some full-rate full-diversity codes in the literature. By utilizing the quaternionic form, we can find the decoding algorithm to reduce the complexity of maximum likelihood (ML) coherent decoding.

Keywords

block codes; matrix algebra; maximum likelihood decoding; space-time codes; transmitting antennas; codeword matrix; maximum likelihood coherent decoding; orthogonal space-time block coding; quaternions; transmit antennas; Antenna theory; Block codes; Constellation diagram; Fading; Maximum likelihood decoding; Paper technology; Quaternions; Space technology; Space time codes; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Conference_Location

Dublin

ISSN

1550-2252

Print_ISBN

1-4244-0266-2

Type

conf

DOI

10.1109/VETECS.2007.119

Filename

4212547