异构无线网络资源管理与切换控制技术

Heterogeneous Wireless Network Resource Management and Handoff Control Technology

随着通信技术的发展,新型业务逐渐增多,传统的通信网络无法满足各种业务之间巨大的性能需求差异,未来的通信网络逐渐向异构网络进行发展。针对异构网络中资源调配与垂直切换的问题,利用虚拟网络技术与资源虚拟化技术设计了异构网络中的无线资源管理方法,并设计了子网间垂直切换算法。该算法利用层次分析法与熵权法得到各网络参数的综合权值,加权得到各网络的效用值并依此选择最优网络。通过搭建系统平台验证了设计的异构无线网络的有效性,为后续异构无线网络的研究提供了参考。

With the development of communication technology,the new service is increasing gradually.The traditional communication network cannot meet the huge performance differences between various services.The future communication network is gradually developing to heterogeneous network.For the problem of resource allocation and vertical handoff in heterogeneous networks,a method of wireless resource management in heterogeneous networks is designed by using virtual network technology and resource virtualization technology.And a vertical handoff algorithm between subnets is designed.The algorithm uses Analytic Hierarchy Process(AHP)and entropy weight method to get the comprehensive weights of network parameters,and the utility value of each network is weighted to select the optimal network.The effectiveness of the designed heterogeneous wireless network is verified by building a system level platform,which provides a reference for the subsequent research on heterogeneous wireless network.