一种结合卫星通信的容迟无线传感网数据收集方法

以广域部署的稀疏无线传感网为研究背景，给出一种无线传感网数据收集系统结构，利用卫星Geocasting方式向指定地域的处于睡眠状态的无线传感器节点发送指令，利用Data Mule收集节点的数据并通过卫星回传，对Data Mule的运动路径进行了规划，提出了一种基于凸包的算法，并设计了该系统的通信协议。仿真结果表明，该方法能有效解决广域稀疏无线传感网在复杂环境中数据收集的难题，有良好的性能。

Data collection method for delay tolerant wireless sensor network by satellite communication

Under the research background of sparse wireless sensor network deploying in wide area,this paper designed a data collection architecture,and orders were sent to sleeping nodes in destined area by satellite Geocasting.Data Mule collected nodes' data and got back by satellite,and layout the Data Mule's movement path,a convex hull-based algorithm and communication protocol.Simulation results show that this method can solve the data collection problem in sparse wireless sensor network under complex environment...