Abstract: A code distribution model is proposed in this paper for Delay Tolerant Mobile Sensor Network(DT-MSN) with variable contact rate. During the general running time of network, sink node maintains the statistic of contact rates between nodes. By taking advantage of these information, it can predict a node sequence of code acquisition before the dissemination stage, then the distribution time can be calculated out to ensure that all the nodes boot the code at same time. Simulation experimental results confirm the validity of the model.

Key words: Wireless Sensor Network(WSN), delay tolerant network, Delay Tolerant Mobile Sensor Network(DT-MSN), variable contact rate, code distribution

摘要： 提出一种不等接触率容延迟移动传感器网络(DT-MSN)的代码分发模型。在网络正常运行阶段由汇聚节点在线统计节点间的接触率，代码分发前通过估计接触率获取更新代码的节点顺序，并以此预测代码分发所需时间，保证全网节点同时启用更新代码。仿真结果证明了该模型的有效性。

关键词: 无线传感器网络, 容延迟网络, 容延迟移动传感器网络, 不等接触率, 代码分发

CLC Number: 

• TN929