Title :
Exact Error Analysis of MPAM Signaling for a Cooperative Diversity System with Correlated Links Using Paired Error Approach
Author :
Swaminathan, R. ; Selvaraj, M.D. ; Roy, Ranjit
Author_Institution :
E & ECE Dept., IIT Kharagpur, Kharagpur, India
Abstract :
In this letter, we consider an uncoded cooperative diversity system consisting of a source (S), a decode and forward (DF) relay (R), and a destination (D). We assume slow, flat, and correlated Nakagami-m fading environment and employ selection combining (SC) at D. Furthermore, we derive the exact end-to-end symbol error probability (SEP) of this system with M-ary pulse-amplitude modulation (MPAM) signaling using paired error approach. It is found from the numerical results that the SR-RD correlated-channel system performs better than the SD-RD correlated, SD-SR-RD correlated, and uncorrelated-channel systems.
Keywords :
Nakagami channels; cooperative communication; decode and forward communication; diversity reception; error statistics; pulse amplitude modulation; relay networks (telecommunication); M-ary pulse amplitude modulation signaling; MPAM signaling; correlated Nakagami-m fading channel; correlated links; decode and forward relay; exact error analysis; flat fading channel; paired error approach; selection combining; slow fading channel; symbol error probability; uncoded cooperative diversity system; Correlation; Diversity reception; Error analysis; Error probability; Fading; Performance analysis; Signal to noise ratio; Decode and forward (DF); M-ary pulse-amplitude modulation (MPAM); Nakagami-m fading; paired error approach; selection combining (SC);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.121813.132261
