Connectivity-based Performance Evaluation for Mobile Cognitive Radio Network
Shuqi Liu, Yiming Wang, Cuimei Cui · Journal of Computers · 2014
Abstract—In this paper, we propose a model of mobile cognitive radio network after fully considering the analysis method of network connectivity based on random way-point (RWP) mobility scheme. The closed-form solution of connectivity probability has been derived to evaluate the network performance in this model. And it shows that the network connectivity is related to the size of mobile cognitive radio network, the number of secondary users, the transmission range of secondary users and primary users, the interference range of secondary users and primary users, the number of primary users and the activity factor of primary users. Simulation results are good agreement with numerical results, which verifies our theoretical analysis is correct and reasonable. Index Terms—mobile cognitive radio network, random way-point mobility model, network connectivity, connectivity probability I.