Impact of the primary user on the secondary user blocking probability in cognitive radio sensor networks

Authors : Mohammad Mehdi HASSANI, Reza BERANGI

Pages : 2081-2092

View : 13 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :With the increasing usage of wireless sensor network technologies, their unlicensed bands become overcrowded. To address this challenge, cognitive radio technology with the dynamic spectrum access policy has merged with Wireless Sensor Network to overcome spectrum underutilization. The Cognitive Radio Sensor Network insert ignore into journalissuearticles values(CRSN); has emerged as a promising solution to overcome spectrum scarcity in a resource-constrained wireless sensor network. In CRSN, TCP has to cope with a new type of packet loss due to the primary users insert ignore into journalissuearticles values(PU); arrival, known here as a secondary user insert ignore into journalissuearticles values(SU); blocking loss. In this paper SU blocking loss is modelled by a discrete-time Markov chain. The experimental results are verified using the NS2.
Keywords : Transport protocol, cognitive radio network, wireless sensor network, secondary user blocking probability, discrete time Markov chain