一种无线传感器网络中抵御拒绝睡眠攻击策略  

A tactics to alleviate influence of denial-of-sleep attack in WSN

作　　者：陈晨[1] 高新波[2] 裴庆祺[1] 吕宁[2] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071 [2]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《江苏大学学报（自然科学版）》2010年第5期570-575,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(60832005;60803151);国家"863"计划项目(2007AA01Z215);中央高校基本科研业务费专项基金资助项目(JY10000901023;JY10000901002);广东联合基金资助项目(U0835004);高等学校学科创新引智计划项目(B08038)

摘　　要：针对无线传感器网络中拒绝睡眠攻击严重降低网络寿命的问题,提出了一种参考接收信号强度指示的虚假调度切换方法.该方法采用接收信号强度指示协助检测拒绝睡眠攻击节点的存在性,当检测结果为真时,启动虚假调度切换,即在受攻击者一跳范围内广播调度切换信息,并在定时器超时后回到初始调度状态,从而使攻击者耗费大量能量测量和跟踪调度周期,以至于过早死亡,保护了正常节点的工作,使其能够摆脱或躲避恶意节点的攻击.在NS2.29平台上,采用标准S-MAC模块进行了仿真.结果表明,该策略能够有效地减少恶意节点碰撞、广播和能量衰竭攻击的影响,在牺牲了一定的能量和时延的情况下,保证了网络的健康程度并减少了丢包率.In order to solve the problem that denial-of-sleep attacking seriously reduceds network life cycle in wireless sensor network,a new scheme was proposed,employing fake schedule switch with RSSI（receive signal strength indicator） measurement aid.The sensors can detect the presence of denial-of-sleep attack with RSSI measurement aid and initiate a fake schedule switch process to defend the attackers.Benefited from such mechanism,the sensor nodes can reduce and weaken harms from collision,exhaustion and broadcast attacks,and as a result make the attackers lose their energy so as to quickly die.So the legitimate sensor nodes are protected from attack of malicious nodes.Simulations were implemented on NS2.29 platform,based on standard S-MAC module.Results show that at a little cost of energy and delay,network health can be guaranteed and packets drop ratio can be decreased compared with original scenarios without the scheme.

关 键 词：无线传感器网络 攻击 调度 生存时间 接收信号强度指示 

分 类 号：TN915[电子电信—通信与信息系统]