Performance analysis of cognitive underlay DF relay protocol with Kth best partial relay selection

Author

Vo Nguyen Quoc Bao ; Duy Trung Tran

Author_Institution

Telecommun. Dept., Posts & Telecommun. Inst. of Technol., Hanoi, Vietnam

fYear

2012

fDate

10-12 Oct. 2012

Firstpage

130

Lastpage

135

Abstract

In this paper, we evaluate performances of cognitive underlay decode-and-forward relay protocol with Kth best partial relay selection. In the proposed protocol, the Kth best secondary relay which is chosen by using the secondary source-relay channel state information (CSI) helps the secondary source to transmit the signal to the secondary destination. We derive exact closed-form expressions of outage probability and average channel capacity over Rayleigh fading channel. The correctness of analytical results is verified by using Monte-Carlo simulations.

Keywords

Monte Carlo methods; Rayleigh channels; cognitive radio; decode and forward communication; probability; protocols; relay networks (telecommunication); Monte-Carlo simulation; Rayleigh fading channel; average channel capacity; closed-form expression; cognitive underlay DF relay protocol; cognitive underlay decode-and-forward relay protocol; outage probability; partial relay selection; performance analysis; secondary source-relay channel state information; Channel capacity; Closed-form solutions; Fading; Interference; Monte Carlo methods; Protocols; Relays; Cooperative communication; channel capacity; outage probability; partial relay selection; underlay networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2012 International Conference on

Conference_Location

Hanoi

ISSN

2162-1020

Print_ISBN

978-1-4673-4351-0

Type

conf

DOI

10.1109/ATC.2012.6404245

Filename

6404245