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针对无线传感器网络服务质量会随着网络运行而下降的现象,研究随机部署的有向传感器网络的节点调度问题,提出分布式的节点感知方向调节算法,各节点利用相邻节点间的信息交换,计算出各自的最佳感知方向,从而使得网络在满足覆盖需求的同时减少活跃节点数目,进而达到降低能耗、提高通信质量的目的.为均衡网络能耗,进一步设计了冗余节点调度协议,周期性地重构网络拓扑.仿真结果表明了所提出算法的有效性.
Aiming at the phenomenon that the service quality of wireless sensor network will decrease with the network operation, the problem of node scheduling in a sensor network with random deployment is studied. A distributed node sensing direction adjustment algorithm is proposed. Each node uses the information exchange between adjacent nodes, So as to reduce the number of active nodes while satisfying the coverage requirement, so as to achieve the purpose of reducing energy consumption and improving communication quality.In order to balance the network energy consumption, a redundant node scheduling protocol is further designed, The network topology is reconstructed periodically.The simulation results show the effectiveness of the proposed algorithm.