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

fYear

2012

fDate

1-4 April 2012

Firstpage

92

Lastpage

96

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2012 IEEE

Conference_Location

Shanghai

ISSN

1525-3511

Print_ISBN

978-1-4673-0436-8

Type

conf

DOI

10.1109/WCNC.2012.6214507

Filename

6214507