Title :
On the Performance of Underlay Cognitive Multisource Multirelay Cooperative Networks
Author :
Haiyan Huang ; Beaulieu, Norman C. ; Zan Li ; Jiangbo Si
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Abstract :
An underlay cognitive multisource multirelay cooperative network is proposed and an analytical framework to evaluate the system performance is formulated. Under both maximum transmission power and interference power constraints, exact and asymptotic outage probabilities for proactive decode-and-forward relaying over Rayleigh fading channels are derived. Both multiuser diversity and cooperative diversity can be achieved with direct secondary links.
Keywords :
Rayleigh channels; cognitive radio; cooperative communication; decode and forward communication; diversity reception; interference suppression; multiuser channels; probability; radio links; relay networks (telecommunication); Rayleigh fading channel; asymptotic outage probability; cooperative diversity; direct secondary links; interference power constraint; maximum transmission power; multiuser diversity; proactive decode-and-forward relaying; underlay cognitive multisource multirelay cooperative network; Cooperative systems; Diversity reception; Fading; Interference; Relay networks (telecommunications); Signal to noise ratio; Diversity; multirelay; multisource; outage probability; underlay cognitive radio;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2398421
