Title :
Performance analysis of unslotted CSMA with double back-off in multi-channel cognitive radio network
Author :
Xiaomei Guo ; Dongbi Zhu
Author_Institution :
Dept. of Electron. & Commun. Eng., Yanbian Univ., Yanji, China
Abstract :
We propose and analyze an unslotted CSMA with double back-off in multi-channel cognitive radio network. We model the system by 3-demensional continuous time Markov process, calculate the steady state probability of the system, and obtain several performance measures such as throughput and forced termination probability of SUs. By comparing the performances of CSMA scheme with single back-off and double back-off, the numerical results show that CSMA scheme with double back-off overcome the defect of low performance in CSMA scheme with single back-off.
Keywords :
Markov processes; carrier sense multiple access; cognitive radio; probability; 3-dimensional continuous time Markov process; SU forced termination probability; double back-off; multichannel cognitive radio network; performance analysis; secondary user; steady state probability; system throughput; unslotted CSMA scheme; CSMA; Cognitive Radio Network; Double Back-Off; Forced Termination Probability; Throughput;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM 2014), 10th International Conference on
Print_ISBN :
978-1-84919-845-5
DOI :
10.1049/ic.2014.0092
