Achieving space and time diversity by using lattice constellation based joint Alamouti coding

Author

Liu, Wei ; Sellathurai, Mathini ; Tang, Chaojing ; Wei, Jibo

Author_Institution

Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

Volume

14

Issue

1

fYear

2010

fDate

1/1/2010 12:00:00 AM

Firstpage

33

Lastpage

35

Abstract

In this letter, we propose a simple space-time code to simultaneously achieve both the space and time diversities over time dispersive channels by using two-dimensional lattice constellations and Alamouti codes. The proposed scheme still reserves full space diversity and double-real-symbols joint maximum likelihood decoding which has the similar computation complexity as the Alamouti code.

Keywords

dispersive channels; maximum likelihood decoding; space-time codes; computation complexity; joint Alamouti coding; lattice constellation; maximum likelihood decoding; space diversity; space-time code; time dispersive channels; time diversity; Antenna theory; Block codes; Chaos; Constellation diagram; Dispersion; Fading; Lattices; Maximum likelihood decoding; Space time codes; Transmitting antennas; Multi-input-multi-output; multi-dimensional lattice constellation; space diversity; space-time block code; time diversity;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.01.091503

Filename

5370265