考虑障碍的无线传感器网络连通性恢复策略

布置在战场、搜救现场的无线传感器网络往往会遭受大面积破坏，从而将无线传感器网络分割成多个不连通的分区，对网络性能造成很大影响。在这种人工很难干预的场景，无线传感器网络的自主恢复非常重要。提出一种考虑障碍的无线传感器网络连通性恢复策略（ OCRS），利用可移动的无线传感器节点（ MDCs）在分区之间移动（收集网络数据）形成暂时的连通线路，在节点移动过程中，考虑路径上障碍。首先构建分区的基于障碍避免的最小生成树，然后优化移动节点的移动路径，最小化移动节点的最大移动距离和总的移动距离。仿真实验结果证实了OCRS的有效性。

Obstacle-aware connectivity restoration strategy for WSNs

Wireless sensor networks( WSNs)in battle field,search and rescue scene are at increased risk of large scale damages and networks are partitioned into disjoint segments. Self-restoring of WSNs in such a case is crucial. Present an obstacle-aware connectivity restoration strategy( OCRS),which places mobile nodes acting as mobile data collectors( MDCs ) among segments to provide intermittent communication links. During MDCs traveling,obstacles are taken into account. Construct obstacle-avoiding minimum spanning tree of segments,and optimize mobile node travel routers. Minimize the maximum moving distance and total moving distance of moving node. Effectiveness of OCRS is validated through simulation experiments.