无线传感器网络MAC协议的节能机制研究

Research on the low power mechanism in MAC protocols of WSN

由于无线传感器网络节点使用干电池和纽扣电池供电的特点,限制了网络节点能量的使用。而传感器网络中能量的控制主要由MAC层和路由层完成,MAC层相对于路由层对能量的控制更为直接和频繁。文章分析了传感器网络的MAC协议中能量消耗的各种原因,并针对各种原因提出了相应的解决办法,可以较好地延长网络的使用寿命。

Nodes in wireless sensor networks（WSN） use batteries as their energy supply, which restrains their energy consumption. The energy control mechanism is performed by the MAC layer and the routing layer, but the MAC layer is more direct and frequent in the energy control than the routing layer. In this paper, aiming at energy conserving,the factors concerning energy consumption in WSN MAC protocols are analyzed,and the low power design methods are studied.