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拓扑控制算法对节省无线传感器网络节点能量、延长网络寿命具有重要意义。无线传感器网络节省节点能量有两种方法:层次型拓扑结构控制和功率控制;但目前还没有算法将以上两种方法相结合。文中是结合周期性休眠和拓扑控制的一种新型拓扑控制策略:基于休眠和扇区的无线传感器网络拓扑控制算法,将拓扑控制算法和节点的休眠结合起来。仿真结果表明:算法在不降低网络吞吐量条件下节省了网络能量消耗,有效延长网络寿命。
Topology control algorithm is of great significance to save the energy of wireless sensor network nodes and extend the network life. There are two methods for WSN saving node energy: Hierarchical topology control and power control; but there is no algorithm to combine these two methods. In this paper, a new topology control strategy based on periodic sleep and topology control is proposed: the topology control algorithm based on dormancy and sector is combined with dormancy of nodes. Simulation results show that the proposed algorithm can save network energy consumption and reduce network lifetime without reducing network throughput.