Title :
Performance analysis for multi-node decode-and-forward relaying in cooperative wireless networks
Author :
Sadek, Ahmed K. ; Su, Weifeng ; Liu, K. J Ray
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
Abstract :
We provide symbol-error-rate (SER) performance analysis for a multi-node wireless network employing a decode-and-forward cooperation strategy. An approximate expression for the SER of an N relay network with M-ary phase-shift-keying (M-PSK) signalling is derived at high enough signal-to-noise ratio (SNR). The approximation hinges on ignoring terms in the SER which are of order higher than (N+1) in the SNR. The validity of the derived approximate SER is justified through computer simulations for networks with different numbers of relays. The simulation results show that the approximation is tight at high SNR and that the cooperation protocol can achieve full diversity order equal to the number of cooperating terminals.
Keywords :
approximation theory; diversity reception; error statistics; fading channels; phase shift keying; protocols; radio networks; radio repeaters; M-PSK; SNR; ad-hoc networks; approximate SER; cellular networks; cooperation protocol; cooperative diversity; cooperative wireless networks; fading; multi-node decode-and-forward relaying; signal-to-noise ratio; spatial diversity; symbol-error-rate; Computational modeling; Computer simulation; Decoding; Fasteners; Performance analysis; Phase shift keying; Protocols; Relays; Signal to noise ratio; Wireless networks;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1415761
