Interference and outage analysis in a cognitive radio network with beacon
Mahsa Derakhshani, Tho Le‐Ngoc, Mai H. Vu · 2010
This paper presents a study on the interference caused by Secondary Users (SUs) due to miss-detection and its effects on the capacity-outage performance of the Primary User (PU) in a cognitive network with beacon. Investigation by simulation indicates that a Gamma distribution can be used to characterize the total interference power from the SUs, and tight upper-bounds on its mean and variance are derived. Based on these results, a closed-form expression of the capacity-outage probability of the PU is developed to examine the effects of various system parameters on the PU performance in the presence of interference from SUs. Simulation results confirm the validity of the developed analytical models.