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总览 评价 郭立侠 1, , 秦宁宁 2,* , 徐保国 1, ( 1、 轻工过程先进控制教育部重点实验室,江南大学,江苏无锡,214122; 2、 江南大学轻工过程先进控制教育部重点实验室,江苏 无锡 214122; ) 摘要: 针对无线传感器网络中存在覆盖空洞现象的问题,
郭立侠1,, 秦宁宁2,*, 徐保国1,
(
1、轻工过程先进控制教育部重点实验室,江南大学,江苏无锡,214122; 2、江南大学轻工过程先进控制教育部重点实验室,江苏 无锡 214122; )
摘要:
针对无线传感器网络中存在覆盖空洞现象的问题,提出了一种空洞修补策略。该算法依托几何知识,首先根据基准移动交叉点确定最佳修补位置,然后通过评估移动节点的入选权重,选择能量高且距离近的节点进行激活,完成空洞修补。实验分析表明,该算法在充分利用网络中被遗留资源的同时实现了对空洞的完全覆盖,与DACHP和PATT算法相比,该算法在节点数目、资源利用率及算法运行时间效率等方面均有显著的优势。
关键词:
无线传感器网络;覆盖空洞;未被激活节点;修补
Guo Lixia1,, QIN Ningning2,*, XU Baoguo1,
(
1、Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, China; 2、Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122; )
Abstract:
Aiming at the phenomenon of coverage holes because of energy depletion and random nodes deployment in wireless sensor networks (WSN), a principle for hole recoverage was proposed. Based on the triangular geometry knowledge, first, determine the optimal patching station in basis of the benchmark-intersection, and then active inactive nodes to patch the hole. The simulation experiments demonstrate that this algorithm makes full of energy resources in the premise of complete coverage to patch coverage hole, and has a better performance in the number of the mobile nodes、resource utilization rate and algorithm running time efficiency compared with the existing DACHP and PATT algorithm.
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