Title :
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
fDate :
5/1/2011 12:00:00 AM
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);
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2011.2126611
