一种Ad Hoc中基于拓扑变换的改进信任度估计模型

An Improved Trust Evaluation Model Based on Topology Transformation for Ad Hoc Networks

针对无线Ad Hoc网络中虚假推荐对信任度准确性造成的恶意影响的问题,提出了一种基于拓扑变换的信任度估计模型.分析与仿真结果表明,该模型的全局信任度具有迭代收敛性,加载此抵御虚假推荐的信任模型能更有效地激励节点协作,分组成功接收率和平均丢包数都有一定改善,同时更适合较大规模的网络.

In term of the influence of fake recommendation on the accuracy of recommendation trust in wire less Ad Hoc networks, a trust model based on topology transformation was proposed. Mathematic analyses and simulations results reveal that the proposed trust model has convergence characteristic, the fake recommendation-resisted model performs better in terms of packet successful delivery ratio and mean num- ber of packets dropped. Meanwhile, this enhanced trusted model is more suitable for large scale networks.