Optimization Scheme of Average Time for Finding Idle Channel in Cognitive Radio System

Authors

Qiao Pei, 1. Northwest University, Xi'an 710127, China;;
Liyuan Xiao, 1. Northwest University, Xi'an 710127, China;;2. Xidian University, Xi'an 710071, China;;3. Service Development Center of the State Commission Office for Public Sector Reform, Beijing 100028, China;;
Yanyan Han, 4. Beijing Electronic Science and Technology Institute, Beijing 100070, China;
Gao Ling, 1. Northwest University, Xi'an 710127, China;;

Abstract

Abstract: In cognitive radio system, periodic spectrum sensing was taken by secondary users to prevent the interference to primary users. Supposed that there are many primary user channels, when the current primary user occupies channel, secondary users do spectrum handover. During spectrum handover, the time of finding an idle channel is a random variable. In order to speed up spectrum handover, the system used equal gain combining cooperative spectrum sensing to inspect an idle channel. This pattern optimized the sensing time of the single user channel, in order to get the best effect of the average time in finding idle channel. Using different simulation parameters, there are accordingly optimal sensing times of the single channel, and the corresponding different shortest average time of finding idle channel.

Recommended Citation

Pei, Qiao; Xiao, Liyuan; Han, Yanyan; and Ling, Gao (2020) "Optimization Scheme of Average Time for Finding Idle Channel in Cognitive Radio System," Journal of System Simulation: Vol. 28: Iss. 3, Article 30.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss3/30

First Page

727

Revised Date

2014-09-22

DOI Link

https://doi.org/

Last Page

732

CLC

TN911.23

Recommended Citation

Qiao Pei, Xiao Liyuan, Han Yanyan, Gao Ling. Optimization Scheme of Average Time for Finding Idle Channel in Cognitive Radio System[J]. Journal of System Simulation, 2016, 28(3): 727-732.