摘要
针对无线传感器网络寿命受节点能量制约的问题,提出一种面向环境监测应用的无线传感器网络协议。利用该协议建立临时虚电路预约机制,由控制中心启动和控制数据传输的操作,实现无冲突策略。控制中心通过下发唤醒时间安排随时调整占空比,由此节省网络能耗。实验结果表明,该协议能降低节点能耗,延长网络生命周期。
Because the lifetime of Wireless Sensor Network(WSN) is restricted by the energy of nodes,this paper gives a WSN protocol for the environmental monitoring application,which uses a reservation system of temporary virtual circuit.In order to achieve the goal without conflicts,the data transmission is started and controlled by the control center which is characterized by the low consumption and high stabilization.By releasing awakening time schedules,the control center can adjust the duty ratio at any moment to decrease energy consumption of node.By using this protocol,node energy consumption is reduced while network lifespan is prolonged.
出处
《计算机工程》
CAS
CSCD
2012年第12期86-88,91,共4页
Computer Engineering
关键词
环境监测
无线传感器网络
WSN协议
节点能量
占空比
environmental monitoring
Wireless Sensor Network(WSN)
WSN protocol
node energy
duty ratio