无线传感器网络中能量高效的自适应分发协议

能源效率在设计无线传感器网络时是非常重要的考虑因素,提供部分节点进入通信休眠状态的功能因此变得异常重要。提出一种基于类SRM(Scalable Reliable Multicast)抑制机制的EEA(Energy-Efficient Adaptive)分发协议,通过动态调整发射频率,抑制不必要的数据重复发送,根据制定的规则来关闭无线射频通信来达到节约节点能耗的目的;此外,在选择发送节点时,引入节点剩余能量参数,可以在一定程度上满足能量均衡;最后分别通过实验对泛洪协议和SPIN进行了相关比较,结果表明:EEA协议发送的次数更少,网络寿命更长。

Adaptive energy-efficient dissemination protocol for wireless sensor networks

Energy efficiency is a very critical consideration in the design of sensor networks which typically have fairly low node battery life.This raises the need for providing sleep cycles for the radios in the sensor nodes.This paper proposes an Energy-Ef-ficient Adaptive(EEA) routing protocol based on SRM(Scalable Reliable Multicast) inhibition mechanism,which dynamically ad-just the frequency to inhibit unnecessary data transmissions,and sleep according to certain rules to save node's energy.Moreover,EEA can achieve the energy balance to certain extent by introducing the parameter of remaining energy to choose sending nodes.The experimental results show that EEA requires less transmissions and achieve longer network lifetime,compared with Flooding and SPIN protocols.