Title :
Performance of distributed turbo-coded cooperative networks with multiple dual-hop relays over Nakagami-m fading channels
Author :
Moualeu, Jules M. ; Hamouda, Walaa ; HongJun Xu ; Takawira, Fambirai
Author_Institution :
Sch. of Electr., Univ. of KwaZulu-Natal, Durban, South Africa
Abstract :
We study the performance of distributed turbo-coded cooperative networks with multiple dual-hop relays over both identical and non-identical Nakagami-m slow fading channels. All the relays are equipped with error detection capabilities and only the reliable relays retransmit to the destination. In this paper, we derive the union bounds on the bit-error rate (BER) of the proposed scheme using the transfer function bounding and the limit-before-average techniques. Moreover, through the derived pairwise-error probability (PEP), we analyze the asymptotic behavior of this system at high signal-to-noise ratio (SNR). It is noted that the achievable diversity order depends on the number of cooperating relays and the fading parameters. Finally, performance evaluation of the proposed scheme is presented via error bounds and Monte Carlo simulations.
Keywords :
Monte Carlo methods; Nakagami channels; cooperative communication; diversity reception; error statistics; performance evaluation; relay networks (telecommunication); telecommunication network reliability; transfer functions; turbo codes; BER; Monte Carlo simulations; PEP; SNR; bit-error rate; cooperating relays; distributed turbo-coded cooperative networks; diversity order; error bounds; error detection capabilities; fading parameters; high signal-to-noise ratio; identical Nakagami-m slow fading channels; limit-before-average techniques; multiple dual-hop relays; nonidentical Nakagami-m slow fading channels; pairwise-error probability; performance evaluation; transfer function bounding; Bit error rate; Cooperative systems; Decoding; Fading; Relays; Signal to noise ratio; Turbo codes; Coded cooperation; diversity order; error rate performance; fading channels; turbo codes;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2013 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-5938-2
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2013.6555162