Research On Algorithm Of Parameters And Topology Reconfiguration In Cognitive Radio Networks

Cognitive wireless network technology dynamically perceives changes in the network environment,and dynamic parameter adjustments,choose spectrum holes for communication,and greatly improve the spectrum utilization.Cognitive wireless network reconfiguration technology is to realize the key technologies of cognitive wireless network function.Cognitive wireless network reconfiguration technology can promote the mutual harmony between heterogeneous networks,to adapt to the complex time-varying dynamic environment,at the same time to complete each parameter set up and optimize the network node,so as to achieve the end-to-end performance of ascension.This a series of operation process,by cognitive reconstruction technology in wireless networks.Reconstruction in the cognitive wireless network technology can make full use of the radio spectrum resources and the reconfiguration technology is a research focus of cognitive wireless networks.Intelligent ant colony algorithm has the characteristics of parallel computing,self-organization,and positive feedback,has positive significance in network reconfiguration technology,this article is based on the advantages of ant colony algorithm is applied to the cognitive wireless network parameter reconstruction algorithm and topology reconstruction algorithm,implements the network performance improvement.In this paper,in the work is as follows:1.This paper puts forward a population decrease of ant colony optimization algorithm,to complete the reconstruction parameters,at the same time,put forward a comprehensive fitness function to meet the requirements of the multiple and complicated target function.And made a series of simulation experiment results show that the stability and effectiveness of the proposed algorithm.2.The ant colony algorithm in cognitive radio network topology reconstruction,the application of ant colony algorithm of parallel computing,the characteristics of selforganization,and positive feedback,also fully embodies in the ant colony algorithm is applied in network topology reconstruction,in the simulation experiment,proved the stability and effectiveness of the proposed algorithm.