Novel full diversity space time codes

Author

Li, Yonghui ; Vucetic, Branka ; Zhou, Zhendong ; Tang, Yang

Author_Institution

Sch. of Electr. & Inf. Eng., Sydney Univ., NSW, Australia

Volume

5

Issue

2

fYear

2006

Firstpage

296

Lastpage

300

Abstract

A novel full diversity space-time trellis code, referred to as an assembled space-time trellis code (ASTTC), is presented in this letter. For this scheme, space-time trellis coded signals are first linearly transformed, and then the transformed signals are coded by using the Alamouti space-time block code. A new design criterion is proposed. It is shown that the ASTTCs can achieve not only the full diversity order but also a significant coding gain determined by the minimum weighted code distance (MWCD). Based on this design criterion, a new 4-state code is derived by a systematic code search. Simulation results show that the new ASTTC is superior by about 1.7 dB to the TSC (TarokhSeshadri-Calderbank) code at the frame error rate (FER) of 1.0e-2 over quasi-static fading channels.

Keywords

block codes; diversity reception; error statistics; fading channels; space-time codes; trellis codes; 4-state code; Alamouti space-time block code; Tarokh-Seshadri-Calderbank code; assembled space-time trellis code; coding gain; frame error rate; full diversity space-time trellis codes; minimum weighted code distance; quasistatic fading channels; systematic code search; Antennas and propagation; Assembly; Block codes; Convolutional codes; Error analysis; Fading; Quadrature phase shift keying; Shift registers; Space time codes; Transmitting antennas;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2006.1611052

Filename

1611052