Title :
P-persistent CSMA Protocol Simulation Based on ON/OFF Source Model in Cognitive Radio Network
Author :
He, Xiangjun ; Jiang, Tigang
Author_Institution :
Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, we discuss a p-persistent CSMA protocol based on-off source model in a cognitive radio network. Then the system model for primary user and cognitive user is analyzed in cognitive radio network, which using discrete event-driven simulation scheme. The article demonstrates various results such as cognitive user packet dropping probability and channel utilization rate, according to different values of p. The result shows that according to the network loading dynamically adjust the values of p can reduce the network collision probability and avoid network congestion. This paper offers a reference to the choice of p.
Keywords :
carrier sense multiple access; cognitive radio; discrete event simulation; probability; protocols; telecommunication congestion control; channel utilization rate; cognitive radio network; discrete event-driven simulation scheme; network collision probability; network congestion; on-off source model; p-persistent CSMA protocol simulation; packet dropping probability; Analytical models; Cognitive radio; Load modeling; Loading; Mathematical model; Multiaccess communication; Protocols;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5601456
