On Bit Error Performance of Full-Rate Signal Space Cooperative Communication over Nakagami-m Fading Channels

Author

Lu, Tao ; Ge, Jianhua ; Yang, Ye ; Gao, Yang

Author_Institution

State Key Lab. of Integrated Service Networks, Xidian University, Xi´´an, China

Volume

16

Issue

8

fYear

2012

fDate

8/1/2012 12:00:00 AM

Firstpage

1224

Lastpage

1227

Abstract

Signal space cooperative (SSC) system can realize full-rate transmission while achieving maximum cooperative diversity gain at the same time by using the signal space diversity technique. In this letter, we investigate the bit error rate (BER) performance of the SSC system over independent and non-identically distributed (i.ni.d.) Nakagami-m fading channels. Particularly, an accurate analytical expression for the overall BER is derived. Moreover, a tight approximation for the BER is obtained to reveal that the achievable diversity order of the SSC system is {{m}_{SD}}+min { {{m}_{SR}},{{m}_{RD}} }, where m_SD, m_SR, and m_RD are the Nakagami fading parameters for the source-destination, source-relay, and relay-destination channels, respectively. Simulation results are presented to verify our theoretical analysis.

Keywords

Approximation methods; Bit error rate; Fading; Relays; Signal to noise ratio; Bit error rate; Nakagami-m fading; cooperative diversity; decode-and-forward; signal space diversity;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.051512.120659

Filename

6203466