基于数据链路监视的Ad Hoc网络攻击检测机制

移动Ad hoc网络由于其动态拓扑、无线信道的特点，特别容易受到各种攻击的威胁。该文在安全路由协议的基础上，针对流量模式类攻击，提出一种基于数据链路监视的攻击检测机制。数据传输链路上的节点在获得可靠路由信息基础上，互相监视上下游节点的行为，从而保证数据传输链路的安全，理论分析和仿真结果验证了该机制的有效性。

Attack Detection Policy in Ad Hoc Networks Based on Data Link Monitor

Mobile Ad hoc Networks (MANET) is suffering from the threat of variety of attacks for its dynamic topology and wireless channel features. This paper presents an attack detection policy based on data link monitoring with support of secure routing protocol, which aims at traffic pattern distortion attacking. The nodes on data link monitor the behaviors of the previous and next nodes to assure the security of data link on a base of trustworthy routing information. Analysis and simulation results show that the policy is efficient.