Title :
Analysis of Cognitive Radio Spectrum Access with Optimal Channel Reservation
Author :
Zhu, Xiaorong ; Shen, Lianfeng ; Yum, Tak-Shing Peter
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
fDate :
4/1/2007 12:00:00 AM
Abstract :
A Markov chain analysis for spectrum access in licensed bands for cognitive radios is presented and forced termination probability, blocking probability and traffic throughput are derived. In addition, a channel reservation scheme for cognitive radio spectrum handoff is proposed. This scheme allows the tradeoff between forced termination and blocking according to QoS requirements. Numerical results show that the proposed scheme can greatly reduce forced termination probability at a slight increase in blocking probability
Keywords :
Markov processes; channel allocation; cognitive radio; probability; quality of service; telecommunication traffic; Markov chain analysis; QoS; blocking probability; cognitive radio spectrum access; forced termination probability; optimal channel reservation; quality of service; traffic throughput; Circuits; Cognitive radio; Councils; Information technology; Laboratories; Mobile communication; Predictive models; Radio network; Throughput; User-generated content;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOM.2007.348282
