In order to save the energy and based on the protocol of IEEE 802.15.4, we add a timer to maintain the physical and MAC layer automatically. Our MAC protocol can sleep and listen circularly to satisfy the goal of energy saving.是什么意思_In order to save the energy and based on the protocol of IEEE 802.15.4, we add a timer to maintain the physical and MAC layer automatically. Our MAC protocol can sleep and listen circularly to satisfy the goal of energy saving.在线翻译_英语_读音_用法_例句