Outage Analysis of Cluster-Based Multi-Hop Cognitive Radio Networks
Hari Krishna Boddapati, Shankar Prakriya, Manav R. Bhatnagar · 2016
In this paper, we study the performance of cluster based multi-hop underlay cognitive radio networks using an ad-hoc path selection mechanism. Both peak power and peak interference constraints are taken into account. The exact end-to-end outage probability of the considered system employing decode-and-forward relays is derived for Rayleigh fading channels. Also, an approximate expression of the outage probability at high signal-to-noise ratio is derived. For fixed-rate and fixed distance between the source and destination, an expression is derived for the number of hops that minimizes the outage probability. Simulation results are presented to validate the derived analytical expressions.