Performance Analysis of Differential Modulation and Relay Selection with Detect-and-Forward Cooperative Relaying

Author

Gao, Yang ; Ge, Jianhua ; Han, Chunlei

Author_Institution

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

Volume

15

Issue

3

fYear

2011

fDate

3/1/2011 12:00:00 AM

Firstpage

323

Lastpage

325

Abstract

This letter analyzes the performance of a multi-relay cooperative communication scheme with differential modulation and relay-selection (DM-RS). The scheme consists of a source, N_R relays, and a destination, where the best relay is selected to forward the source node´s signal with detect-and-forward (DetF) protocol. The capacity outage probability (COP) and symbol error rate (SER) of the scheme are investigated. In particular, a closed-form COP and an approximation at large signal-to-noise ratio (SNR) are derived. The COP approximation shows that the scheme can achieve a full diversity order of N_R+1. Furthermore, a closed-form SER approximation of the scheme with multiple phase shift keying (MPSK) modulation is derived. Simulation results confirm the presented mathematical analysis.

Keywords

amplify and forward communication; cooperative communication; diversity reception; error statistics; phase shift keying; probability; SER; capacity outage probability; cooperative relaying; detect-and-forward; differential modulation; multiple phase shift keying; relay selection; signal-to-noise ratio; symbol error rate; Approximation methods; Bit error rate; Fading; Modulation; Relays; Signal to noise ratio; Simulation; Cooperative communication; detect-and-forward; differential modulation; relay selection;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.012511.101058

Filename

5704856