节点移动速率对Epidemic协议性能影响分析
The analysis of epidemic protocol performances impacted by movement rate of mobile nodes

当容迟网络DTN中的传感器部署于城市环境下, 携带传感器的移动对象存在多种选择的问题. 文章在城市场景下分别设置传感器部署于较低移动速率节点组与较高移动速率节点组, 并基于工作日模型仿真Epidemic传染路由协议. 实验结果表明, 传输覆盖半径为10米时, 传感器携带于较高平均速率的移动节点组可以提高数据投递成功率与降低DTN的网络负载.
The Delay Tolerant Network (DTN) can be deployed in urban environments, thus the sensor carriers have many choices. In this paper, sensors are carried by relative lower and higher rate group respectively in an urban scenario, and Epidemic routing protocol is selected for the experiments based on Working Day Movement (WDM) model. The results indicate that the higher average speed groups of sensor carriers can increase the delivery ratio and decrease the overhead ratio at 10 meters transmit range