一种优化的机会网络高效路由算法仿真分析

Simulation and Analysis of Optimized Network Efficient Routing Algorithm

研究机会网络的高效路由通信优化问题。机会网络中不需要源节点和目的节点建立完整路径,利用节点移动带来的相遇机会实现网络通信,就会造成网络的拓扑结构随时发生改变,连通性的固定性往往不能得到保证。传统的网络路由协议中,缺少对上述动态变化的约束,很难在变化节点中选出最优路径,导致通信效率下降。为了避免上述缺陷,提出了一种动态粒子协同搜索的机会网络路由算法。利用节点感知方法,计算机会网络覆盖区域中的节点感知对象,捕获动态变化的节点特性。利用粒子协同识别方法,计算出机会网络中的最优移动节点方向,并用这化动态特性实现机会网络的高效通信。实验结果表明,利用改进算法描述机会网络路由算法,极大的提高了机会网络的通信效率。

The optimization of efficient routing communication of opportunity network was researched. In the tra- ditional network protocol, the dynamic change limitation is lacking, it is hard for the optimal path to be selected in the changeable nodes that resulted in the low efficiency of communication. An opportunity network routing algorithm was proposed based on dynamic particles cooperative search. The nodes perception method was used and objects of perception were covered by the computing opportunity network. The dynamic changeable features of nodes were cap- tured. The optima motion nodes direction was calculated in the network, and the efficient communication was realized based on the changeable dynamic features. Simulation result shows that the improved algorithm can improve the effi- ciency of communication for the opportunity network to a great degree.