认知无线网络的认知能力保障方法研究综述  

Survey towards Cognitive Ability Guarantee in Cognitive Radio Networks

作　　者：冯光升[1] 郑晨[1] 王慧强[1] 赵倩[2] 吕宏武[1] 

机构地区：[1]哈尔滨工程大学计算机科学与技术学院,哈尔滨150001 [2]哈尔滨商业大学计算机与信息工程学院,哈尔滨150028

出　　处：《计算机科学》2014年第5期8-13,19,共7页Computer Science

基　　金：教育部博士点基金优先发展领域项目(20122304130002);中央高校基本科研业务费(HEUCF100601);黑龙江省博士后基金(LBH-210204);黑龙江省自然科学基金(F201037;ZD201102)资助

摘　　要：认知无线网络通过对无线环境的感知获得频谱空洞信息,并以动态频谱接入为关键技术,机会地使用空闲频谱,与传统的无线网络相比,具有更高的网络通信资源利用率。认知能力作为认知无线网络的本质属性,其安全保障直接关系到认知无线网络的实用化进程。由于网络结构的复杂性、节点的移动性等问题,认知能力在各个认知环节中均面临不同程度的安全威胁。首先从认知循环:认知通信、资源感知、推理决策和服务适配4个环节分析认知能力保障所面临的安全问题以及相应的解决方案,然后总结现有方法的不足和缺陷,提出认知能力保障策略基于信任机制的发展趋势;最后指出未来认知能力保障领域所面临的挑战,并对该领域的研究方向进行了展望。Cognitive radio network can sense wireless environment and then uses spectrum white holes in an opportunistic manner through dynamic spectrum access technology.Cognitive ability is an essential attribute of cognitive radio network,therefore the safety guarantee of cognkive ability is directly related to the practical process in cognitive radio networks.Cognitive ability is faced various security threats due to the complexity of cognitive radio network architecture and node mobility issues.Cognitive ability security issues and corresponding solutions were introduced from the aspects of cognitive communication,resources sensing,inference decision,and services fit,and then the shortages and weaknesses of the existing solutions were summarized.Development tendencies on cognitive ability guarantee were proposed afterwards based on trust mechanism.Problems and challenges faced by cognitive ability guarantee as well as a discussion on the future research topics were referred to at last.

关 键 词：认知无线网络 认知能力 认知通信 资源感知 服务适配 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]