Title :
Outage Performance for Cognitive Relay Networks with Underlay Spectrum Sharing
Author :
Luo, Liping ; Zhang, Ping ; Zhang, Guangchi ; Qin, Jiayin
fDate :
7/1/2011 12:00:00 AM
Abstract :
The outage performance is investigated for a cognitive relay system with underlay spectrum sharing model. It is shown that the dependence among the received SNRs is introduced due to the interference power constraint. The joint probability of the received SNRs is derived. By considering the dependence for the case of null decoding set, a tight lower bound on the outage probability is obtained. Simulation results are presented to verify the theoretical analyses.
Keywords :
cognitive radio; interference (signal); radio spectrum management; cognitive relay networks; interference power constraint; outage performance; underlay spectrum sharing; Approximation methods; Cognitive radio; Decoding; Interference; Joints; Relays; Simulation; Cognitive relay; lower bound; outage probability; underlay spectrum sharing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.051011.110426
