A Family of Distributed Space-Time Trellis Codes With Asynchronous Cooperative Diversity

Author

Li, Yabo ; Xia, Xiang-Gen

Author_Institution

Dept. of Electr. & Comput. Eng., Delaware Univ., Newark, DE

Volume

55

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

790

Lastpage

800

Abstract

In current cooperative communication schemes, to achieve cooperative diversity, synchronization between terminals is usually assumed, which may not be practical since each terminal has its own local oscillator. In this paper, based on the stack construction proposed by Hammons and El Gamal, we first construct a family of space-time trellis codes for BPSK modulation scheme that is characterized to possess the full cooperative diversity order without the synchronization assumption. We then generalize this family of the space-time trellis codes from BPSK to higher order QAM and PSK modulation schemes based on the unified construction proposed by Lu and Kumar. Some diversity product properties of space-time trellis codes are studied and simplified decoding methods are discussed. Simulation results are given to illustrate the performance of the newly proposed codes

Keywords

decoding; diversity reception; phase shift keying; quadrature amplitude modulation; space-time codes; trellis coded modulation; BPSK modulation scheme; QAM; asynchronous cooperative diversity; cooperative communication schemes; decoding methods; distributed space-time trellis codes; Binary phase shift keying; Convolutional codes; Diversity methods; Local oscillators; MIMO; Modular construction; Modulation coding; Receiving antennas; Relays; Sensor systems; Asynchronous cooperative diversity; multiple-input multiple-output (MIMO); sensor networks; space–time trellis codes;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2007.894117

Filename

4155128