一种适用于复杂环境的冗余检测算法

Redundancy detection algorithm for complex environment

在无线传感器网络中,由于节点能耗的不均衡导致节点感知半径的不同.针对这种复杂环境的应用,提出了一种分布式冗余检测算法,给出了相应的冗余检测准则,并对该准则的合理性进行了理论分析.在保持网络原始覆盖质量的前提下,能够更充分地检测冗余节点.仿真实验表明,复杂环境中节点感知半径相同时,算法激活的工作节点数目少,冗余检测完整;感知半径不同时,算法仍能充分、有效地检测冗余节点,从而节省能量、延长网络生存时间.

The imbalance of the node＇s energy consumption dues to the difference of the sensing radius of node in wireless sensor network.In view of this complex application environment,a distributed redundancy detection algorithm is proposed. The corresponding redundancy detection criteria is proposed,and the reasonableness of the criteria is analyzed.Under the condition of maintaining the coverage quality of original network,the algorithm can detect the redundant node more adequately.Simulation results show that,in the complex environment when the nodes have the same sensing radius,the algorithm activates less node for working,and the redundancy detection is integrated.When the nodes have different sensing radius,the algorithm detects the redundant node adequately and efficiently,so as to save lots of energy and prolong the lifetime of the network.