摘要： 针对无线传感器网络存在服务质量不高的问题，提出一种基于中值差值的分布式容错算法，建立一套能量有效的事件区域检测容错机制，该算法充分利用传感器节点的空间相关性，融合各邻居节点的中值信息，对中心节点的最终状态进行判断。仿真实验结果表明，当节点错误率为15%时，该算法仍能检测到86%的错误节点数，具有优越的容错性能。
关键词:
无线传感器网络,
分布式容错,
事件区域检测
Abstract: Aiming at the problem of low service quality in Wireless Sensor Networks(WSNs), a Distributed Gap Fault-tolerant Scheme(DGFS) algorithm is presented. A set of energy-efficient event region detection fault-tolerant mechanism is built up. This algorithm exploits the spatial correlations among sensor nodes, syncretizes the median information, and judges the final state of the central node. Simulation experimental results demonstrate that when the faulty nodes ratio reaches 15%, this algorithm is still able to detect 86% of the faulty sensor nodes, and is characteristic of superior performance.
Key words:
Wireless Sensor Networks(WSNs),
distributed fault-tolerance,
event region detection
中图分类号:
李 平;李 宏;吴 敏. WSNs分布式事件区域容错算法[J]. 计算机工程, 2009, 35(14): 142-144.
LI Ping; LI Hong; WU Min. Distributed Event Region Fault-tolerant Algorithm for Wireless Sensor Networks[J]. Computer Engineering, 2009, 35(14): 142-144.