基于狩猎搜索的可信QoS路由算法

Hunting Search Based Trustworthy QoS Routing Algorithm

提出了一种可信QoS路由算法,采用区间形式描述用户需求以适应用户QoS和信任要求的模糊性,采用基于滑动窗口和窗台的信任评估与控制机制,引入满意度函数,基于狩猎搜索寻找满足用户需求的优化路径.对提出的算法进行了仿真实现,并在多个实际网络拓扑和虚拟网络拓扑上进行了性能评价,结果表明,所提算法是可行和有效的,同现有算法相比,具有更好的性能.

A trustworthy QoS routing algorithm was proposed. The interval was used to describe the user requirement in order to adapt to the fuzziness of the user QoS and trust demand. Based on the sliding window and windowsill, the trust evaluation and control mechanism were implemented. The satisfaction degree function was introduced to find the optimal path which satisfies the user requirement on the basis of the hunting search algorithm. The simulation of the proposed algorithm was realized, and the performance evaluation was done over several actual and virtual network topologies. The results showed that the proposed algorithm was both feasible and effective, and had better performance than that of the existing ones.