期刊文献+

基于重叠区域的无线传感反应网络连接性恢复机制 被引量:2

Overlap-based connectivity restoration approach for wireless sensor and actor network
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摘要 针对无线传感反应网络(WSAN)中反应节点的失效导致的网络连接性被破坏问题,提出了一种新的网络连接性恢复机制。反应节点首先根据2跳网络拓扑信息来确定是否为局部关键节点,然后利用反应节点间存在的管理区域的重叠性来计算新的移动位置,最后采用局部级联重定位方式来实现连接性的恢复。通过NS2仿真结果表明,该机制能够正确恢复网络的连接性并实现较小的恢复开销。 In Wireless Sensor and Actor Network(WSAN),the failure of an actor would bring about the loss of connectivity and more resource consumption of the sensors which belong to the failed actor.Thus,this paper proposed a new approach to restore the connectivity of WSAN.With 2-hop neighbor information,the approach determined whether the actor was local cut-vertex at first,and then calculated the migration distance of actor according to the overlap of management area among actors.Each actor created the recovery schedule list beforehand in distributed manner and broadcast it.Some neighbors of failed actor which belong to the recovery schedule list would perform restoration process in sequence with local cascading movements when failure occurred.The NS2 simulation results confirm the effectiveness of the approach.
作者 赵新元 王能
出处 《计算机应用》 CSCD 北大核心 2011年第10期2638-2643,2649,共7页 journal of Computer Applications
关键词 连接性 管理区域 重叠 无线传感反应网络 反应节点 移出距离 connectivity management area overlap Wireless Sensor and Actor Network(WSAN) actor migration distance
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同被引文献34

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