This paper analyses energy consumption of nodes based on S-MAC detailedly,consequently educes how the factors of working nodes make effect on energy consumption.

• 本文对协议中的节点能量消耗问题进行了详细地分析,从而推导出节点工作时各因素对能量消耗的影响。针对S-MAC的能量节省是以高延迟为代价;