认知无线电网络中频谱感知安全的研究进展  

A Survey on Spectrum Sensing Security Issues in Cognitive Radio Networks

作　　者：汪晓睿[1] 刘全[2] 

机构地区：[1]海军计算技术研究所,北京100841 [2]海军工程大学通信工程系,湖北武汉430033

出　　处：《计算机技术与发展》2011年第12期155-159,共5页Computer Technology and Development

基　　金：国家863计划资助项目(2009AAJ208;2009AAJ116)

摘　　要：频谱感知是认知无线电网络中的核心功能,它的引入可使次用户在不干扰主用户的前提下实现对授权频段的伺机接入,然而,同时也给网络带来了许多安全方面的新隐患。该文对频谱感知安全的最新研究进展进行了综述,针对物理层的伪装主用户攻击,分析了两种主流解决思路的可行性。针对链路层的篡改感知数据攻击,分别在信息融合式和分布式两种不同的感知场景下,归纳并比较了几种典型抗攻击策略的优劣。在此基础上,明确了下一步的主要研究方向。In CRNs,spectrum sensing is the core functionality,and with the help of it, the secondary users are allowed to access the authorized spectrum bands in an opportunistic manner,without causing any interference to the primary users. However,it also brings in some new security threats. In this paper,the recent advances of security issues in CRNs are surveyed. For the primary user emulation attacks in the physical layer,the feasibility of two mainstream solutions is analyzed. For the spectrum sensing data falsification attacks in the link layer,the performances of several typical anti-attack strategies are summarized and compared,in the information-fusion-based CSS scenario and the decentralized CSS scenario ,respectively. Furthermore, the main directions for the future research are viewed.

关 键 词：认知无线电 频谱感知 感知安全 伪装主用户攻击 篡改感知数据攻击 

分 类 号：TN92[电子电信—通信与信息系统]