认知路由算法设计的挑战与关键指标分析  

Analysis of challenges and key indicators in design of cognitive routing algorithm

作　　者：闵慧[1] 李鹏 Min Hui;Li Peng(Department of Computer Engineering,Hunan College of Information,Changsha,Hunan 410200,China;School of Information Science and Engineering,Hunan University of Chinese Medicine)

机构地区：[1]湖南信息职业技术学院计算机工程系,湖南长沙410200 [2]湖南中医药大学信息科学与工程学院

出　　处：《计算机时代》2018年第6期18-22,共5页Computer Era

基　　金：湖南省科技厅项目(2011RS4025;2013GK3143);湖南省教育厅优秀青年基金(13B079)

摘　　要：在认知无线网络中,认知用户如何在动态变化的频谱环境下实现可靠、高效的路由是目前的一个研究热点。在对最近的研究成果进行归纳总结的基础上,从节点具有的频谱机会集合(SOP)动态变化和多信道多接口两方面特性出发,指出了认知路由面临的主要挑战;通过实例对比分析了设计路由算法所需考虑的功率控制、认知用户移动性、链路可靠性、负载均衡等多个重要指标;展望了认知路由技术的进一步研究方向,并针对认知路由新技术研究和某些热点问题,提出了可能采取的路由优化方法和思路。In the cognitive wireless network, how to find a reliable and effective routing path for CR users with the dynamic changes of spectrum is currently a hot research topic. Based on the summary of the current routing research results, this paper points out the critical challenges of the cognitive routing from the two features of nodes： the dynamic spectrum and multi-channel multi-interface; The key indicators in the design of routing algorithm such as power control, cognitive users＇ mobility, link reliability, and load balancing are discussed, and compared and analyzed with practical examples. The further research direction of cognitive routing technology is prospected, and the possible route optimization methods and ideas are proposed for new technology research and some hot issues.

关 键 词：认知无线网络 路由 挑战 指标 进一步研究方向 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]