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A4 4 - W Wake-Up Receiver Using Ultrasound Data
本文展示了一种超低功耗超声波唤醒接收器,用于无线传感器网络。
65nm CMOS, 0.6V, 250bps, 8.6m, 4.4μW
超声波通信唤醒接收器超低功耗无线传感器网络65nm CMOS
▸超声波通信:采用超声波作为数据传输媒介,实现无线传感器节点的唤醒功能,相比传统射频通信具有更低的功耗和更高的抗干扰能力,适用于室内环境中的短距离通信。
▸超低功耗设计:通过优化电路设计和信号处理算法,将接收器的功耗降低至4.4 W,显著延长了无线传感器节点的电池寿命,同时保持了良好的通信性能(BER < 10)。
▸65nm CMOS工艺:利用先进的65nm CMOS工艺实现接收器原型,在0.6V的低电压下工作,进一步降低了功耗,同时提高了集成度和可靠性。
▸高效能链路:在8.6米的自由空间链路中实现250bps的数据传输速率,仅需18dBm的发射功率,展示了高效的能源利用和稳定的通信性能。
Abstract
In wireless sensor nodes, using a wake-up receiver
to duty-cycle the main receiver signi ficantly reduces the overall
power consumption of the node, as long as the power consumption
of the always-ON wake-up receiv er is very low. We demonstrate
line-of-sight ultrasound data communications for ultra-low power
wireless wake-up in sensor networks. The 65-nm CMOS 0.6-V
receiver prototype achieves a BER of better than 10 measured
for a 250-bps free-space 8.6-m link in an indoor environment while
dissi