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 (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 (PU) arrival, known here as a secondary user (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.
Transport protocol, cognitive radio network, wireless sensor network, secondary user blocking probability, discrete-time Markov chain.
HASSANI, MOHAMMAD MEHDI and BERANGI, REZA
"Impact of the primary user on the secondary user blocking probability in cognitive radio sensor networks,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 27:
3, Article 37.
Available at: https://journals.tubitak.gov.tr/elektrik/vol27/iss3/37