基于节点剩余能量调配的无线传感器网络能量均衡路由协议

Residual energy scheming based energy equilibrium routing protocol for wireless sensor network

针对现有无线传感器网络路由协议中能量消耗不均衡的问题,提出基于节点剩余能量调配的能量均衡路由协议(RESEE)。协议对节点间的梯度进行模糊分级,并将模糊等级选择策略与质量评价函数相结合选择下一跳节点,以实现全局的能量均衡;协议采用低能量节点的拒绝与推荐策略、高能量节点的激活策略,以实现局部的能量均衡。仿真结果表明:当节点数为400时,RESEE较定向扩散(DD)路由协议的节点平均能耗降低29%,网络寿命上延长125%,节点剩余能量分布曲线证明RESEE能更均衡地利用有限的能量。

To balance the energy consumption in WSN, residual energy scheming based energy equilibrium routing protocol （RESEE） was proposed. In RESEE, a fuzzy gradient classification based next hop strategy was designed to balance the energy consumption as a whole. Reject and recommend strategy of low residual energy node, and reactivate strategy of high residual energy node were applied to equilibrize the energy consumption locally. Simulation results show that the average dissipated energy decreases by 29% in RESEE compared with directed diffusion （DD）, and the lifetime grew by 125% at the network size of 400. Residual energy distribution maps also prove the energy equilibrium characteristic of RESEE.