【作者】 唐静； 王汝传； 黄海平；

【Author】 TANG Jing,WANG Ru-chuan,HUANG Hai-ping (Institute of Computer Science and Technology,Nanjing University of Posts and Telecommunications,Nanjing Jiangsu 210003,China)

【机构】 南京邮电大学计算机学院；

【摘要】 基于时分多址(Time Division Multiple Access)的MAC层协议在应用于Ad Hoc网络时,具有较好的稳定性,但同时也存在一些安全漏洞。文中在已有研究的基础上,进一步分析了TDMA帧结构,提出一种针对TDMA时间帧的攻击方法,并在NS2仿真平台上实现。通过前后网络性能的分析比较,可以看出该攻击效果明显,论证了攻击方法的可行性。论文的最后,我们针对该攻击,对相应的防御机制进行了分析和探讨。更多还原

【Abstract】 Dynamic TDMA protocol has shown its security weakness while some strength is emphasized when applied in Ad Hoc networks.Based on the present researches,the structure of TDMA time frame is analyzed.What’s more,an attack on time slots is described and implemented on NS2 platform.It is clearly proved that the related performance of Ad Hoc networks are affected so long as the attack is put into practice.And corresponding defense mechanisms are discussed finally in this paper.更多还原