一种高效节能分布式传感器网络覆盖协议

Distributed High Efficiency and Energy-Saving Coverage Protocol of Wireless Sensor Networks

提出了一种分布式高效节能的传感器网络覆盖协议(CEP),在保证网络性能的前提下,每个节点将工作周期分为多轮,在每轮中与邻居节点协商,并根据剩余能量来调度自身的工作模式,从而保证网络在每轮中以最少的节点处于工作模式,同时保证能耗均匀地分布在工作节点之上.仿真结果表明,随机均匀部署的传感器网络在满足覆盖度要求前提下的CEP,能使网络生命周期较LEACH方法延长了200%,计算复杂性降低10%.该协议可以广泛应用于与传感器网络节点部署、拓扑控制以及目标监控等相关的领域.

A novel distributed high efficient energy-saving coverage protocol （CEP） of wireless sensor networks is proposed, in which under the premise that the performances of networks are guaranteed the work cycle of each node is divided into many rounds and in each round the node schedules work mode itself according the residual power after negotiating with its neighbor nodes. CEP can ensure that nodes are in active work mode as few as possible while ensuring energy is uniformly distributed over these nodes and others are in sleeping mode. Simulation demonstrates that when the nodes are deployed randomly and uniformly in sensor networks and satisfies the coverage requirements, CEP can extend the lifecycle of networks more about 200% than that of LEACH protocol, and computation complexity is decreased by 10%. The protocol can be used in related application areas such as node deployment, topology control and target tracking.