Title :
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
fDate :
3/1/2011 12:00:00 AM
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, NR 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 NR+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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.012511.101058
