无线传感器网络中多重覆盖算法的研究

Research on Multiple Coverage Algorithm in Wireless Sensor Networks

在无线传感网器络中的硬件资源普遍受限的情况下,形成优秀的覆盖控制策略己成为无线传感器网络研究领域的热点课题。本文提出了一种能量有效的多重物理覆盖算法,在保障覆盖与连通性的前提下,以能量、覆盖度为衡量指标,采用调度机制实现节点轮换活跃与休眠,有效地提高网络生存时间。仿真实验结果表明,与目前典型算法相比,提出的算法在网络生存时间、能量消耗与消亡节点数上具有显著的优势。

Coverage has become one of the hottest topics in this field,for the hardware and energy is always limited in wireless sensor networks （ WSNs ） . This paper presents an efficient power multiple coverage algorithm. By measuring energy and coverage degree,it puts redundant sensor nodes to sleep mode to save energy while maintain the sensing field sufficient coverage degree with precondition of coverage and connective of WSN. Detailed simulation results and compared to existing schemes indicate that the proposed algorithm not only guarantees the network coverage degree,but also prolongs the network lifetime.