定向扩散路由无线传感器网络行为仿真

摘要

In order to improve the performances of wireless sensor networks based on directed diffusion,the simulation for network behavior was completed.The models of node distribution,directed diffusion gradient field,data aggregation and statistical characteristics were given.In addition,the main simulation algorithms and the simulation results in graphical way were presented.The theoretic analysis and simulation results illustreted that there were still defects within the original directed diffusion protocols in wireless sensor networks,and the improvement direction was indicated.%为改善定向扩散路由无线传感器网络性能,利用MATLAB仿真软件对其网络行为进行了仿真.根据网络运行规则建立了节点分布模型、定向扩散梯度场模型、数据汇聚模型以及特征统计模型.给出了主要仿真算法,并以图形化方式给出了仿真结果.理论分析和仿真结果表明,现有无线传感器网络的定向扩散路由存在缺陷,需要改进,并给出了改进方向.