Title :
Performance analysis of Z-channel with relay under Rayleigh fading and discrete constellations
Author :
Sirigina, R.P. ; Madhukumar, A.S. ; Qian Li
Author_Institution :
Nanyang Technol. Univ., Singapore, Singapore
Abstract :
Interference forwarding in an interference channel makes the interference stronger which in turn enables the usage of simple detectors like the successive interference canceler (SIC) at the destinations. In this paper, detect and forward (DF), amplify and forward (AF) based interference forwarding protocols (also called as AF-SIC and DF-SIC protocols) are analyzed. Symbol error rate (SER) performance of the SIC, AF-SIC and DF-SIC protocols using M-PAM modulation is studied. Also the relay channel gains required to restore full diversity for the AF-SIC and the DF-SIC protocols are obtained. Impact of the relay power and relay location on the SER performance is also studied. The proposed protocols are proved to provide the same SER performance as the orthogonal transmission scheme while improving the spectral efficiency.
Keywords :
Rayleigh channels; amplify and forward communication; interference suppression; routing protocols; AF-SIC protocols; DF-SIC protocols; M-PAM modulation; Rayleigh fading; Z-channel; amplify and forward; detect and forward; discrete constellations; interference channel; interference forwarding protocols; orthogonal transmission; relay channel; relay location; relay power; successive interference canceler; symbol error rate; Detectors; Fading; Interference; Protocols; Relays; Signal to noise ratio; Silicon carbide;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0436-8
DOI :
10.1109/WCNC.2012.6214507
