Optimum Receiver Performance With Binary Phase-Shift Keying for Decode-and-Forward Relaying

Author

Selvaraj, M.D. ; Mallik, Ranjan K. ; Goel, Rupakshi

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol.-Kharagpur, Kharagpur, India

Volume

60

Issue

4

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

1948

Lastpage

1954

Abstract

Cooperative diversity through decode-and-forward (DF) relaying is an effective method for improving the performance of mobile wireless systems. We consider here the performance of a cooperative diversity system in which the relay employs the DF protocol to transmit data from a source to a destination using binary phase-shift keying (BPSK). A flat Rayleigh fading environment with statistically independent links is assumed. The optimum receiver for this system is presented, and from the decision rule, the end-to-end symbol error probability (SEP) is derived. Numerical results on the SEP are obtained and compared with those for a suboptimum receiver, which does not need the channel state information of the source-to-relay link.

Keywords

Rayleigh channels; cooperative communication; decode and forward communication; diversity reception; error statistics; mobile radio; phase shift keying; protocols; radio receivers; DF protocol; Rayleigh fading; binary phase shift keying; cooperative diversity; data transmission; decision rule; decode-and-forward relaying; end-to-end symbol error probability; mobile wireless system; optimum receiver performance; source-to-relay link; Binary phase shift keying; Protocols; Rayleigh channels; Receivers; Relays; Signal to noise ratio; Binary phase-shift keying (BPSK); Rayleigh fading; decode-and-forward (DF) protocol; optimum receiver; symbol error probability (SEP);

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2011.2126611

Filename

5729841