【摘要】 SCP-MAC协议相邻节点间的同步唤醒,如果通信负荷增加,会产生较高的无意侦听,会降低能效和吞吐量,造成拥塞。提出了一种基于同步调度的超低占空比MAC协议ESCP-MAC,优化了唤醒调度方式,减少相邻节点的竞争,采用低功耗侦听的方式同步。仿真和实验结果表明:提出的协议在继承SCPMAC协议低能耗优势的基础上,改善了多跳传输的端到端延时性能,减少了丢包率。更多还原

【Abstract】 In SCP-MAC protocol,synchronous awakening between adjacent nodes,with the increase of communication load,will cause unintentional listening and decline of energy efficiency and handling capacity,which can lead to network congestion. A low-duty-ratio MAC protocol is proposed. It optimizes the awakening scheduling mode,reduces the competition of adjacent nodes and synchronizes with low-power consumption listening. The simulation results shows that ESCP-MAC protocol retains the advantage of low energy consumption,improves characteristics of end-to-end delay and reduces rate of packet loss.更多还原