摘要
为进一步降低传感器节点闲置侦听导致的能量消耗,改进MAC(media access control)协议,提出了一种用于无线传感器网络的新型的节能的分帧MAC(division-frame MAC,DF-MAC)协议.DF-MAC通过设置多个分帧使传感器节点的侦听时间缩短,减少了与其它节点通信所需的能量.DF-MAC有2个主要特点:低占空比和低碰撞数.在DF-MAC中碰撞数被降到最小程度,节省了重发封包所需的能量.仿真结果表明,与现有的MAC协议相比,能量消耗更低.
In order to decrease the energy consumption in idle listening of each sensor node and improve MAC (media access control) protocol, a novel energy-efficient division-frame MAC (DF-MAC) protocol is proposed for wireless sensor networks. DF-MAC allows sensor nodes to reduce their listening time by setting multiple division-frames, which will then reduce the energy consumption in communications with other nodes. DF-MAC has two main advantages, i.e. low duty cycle and small number of collisions. The minimization of collisions number in DF-MAC can save the energy required by retransmission of corrupted packets. Simulation results show that DF-MAC outweighs existing MAC protocols in the aspect of energy consumption.
出处
《信息与控制》
CSCD
北大核心
2013年第1期95-99,共5页
Information and Control
基金
中央高校基本科研业务费专项资金资助项目(DL12DB03)
黑龙江省自然科学基金资助项目(C201115)
关键词
低功耗
MAC协议
无线传感器网络
low energy consumption
MAC (media access control) protocol
wireless sensor network (WSN)