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针对当前MANET安全机制研究中过于关注机密性和完整性而忽略可用性的问题,该文指出在MANET这样无中心、动态拓扑、资源受限的环境中,信任模型是最为合理的安全解决方案,从而提出基于可用性的信任模型。并在此基础上,以网络数据包的传递作为信任参考依据,对传统的AODV路由协议进行了改进,提出了ATAODV路由协议。网络模拟实验的数据显示基于可用性信任模型的ATAODV相对于传统AODV,丢包率平均降低了70.2%。
Aiming at the problem of confidentiality and integrity ignoring availability in the current research of MANET security mechanism, this paper points out that trust model is the most reasonable security solution in MANET such as non-center, dynamic topology and resource-limited Propose a trust model based on usability. Based on this, the traditional AODV routing protocol is improved by taking the delivery of network packets as the reference of trust. ATAODV routing protocol is proposed. Data from network simulation experiments show that the ATAODV based on the usability trust model has an average drop of 70.2% compared with the traditional AODV.