Title :
BER performance analysis of a Cooperative BICM system based on post-BSC model
Author :
Hoshyar, Reza ; Tafazolli, Rahim
Author_Institution :
Dept. of Electron. Eng., Univ. of Surrey, Guildford
Abstract :
A generic cooperative BICM system is described and an analytical model capturing relay error through a binary symmetric channel (BSC) is presented. The analytical model is called Post-BSC model as the BSC channel is placed after encoder of the relay node. Tight BER upper bound is derived for the presented model and close match between simulation and analysis for the presented model is observed. However it is also observed that the proposed model is optimistic and fails to effectively model the original system at low SNR conditions of the source to relay link. Despite this fact the incorporation of the Post-BSC model based maximum likelihood decoding greatly improves the system BER with respect to the original DF scheme.
Keywords :
error statistics; maximum likelihood decoding; radio links; BER performance analysis; analytical model; binary symmetric channel; bit error rate; cooperative BICM system; maximum likelihood decoding; post-BSC model; relay error; relay link; Analytical models; Binary codes; Bit error rate; Interleaved codes; Maximum likelihood decoding; Modulation coding; Performance analysis; Protocols; Relays; Upper bound; BICM; coding; cooperative; higher order modulation; relay channel;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699625
