An LPWAN Radio with a Reconfigurable Data/Duty-CycledWake-Up Receiver

📋 论文概要

针对LPWAN应用中接收器高功耗导致无法始终开机待机的问题，提出了一种具有可重构数据/占空比唤醒接收器的LPWAN无线电，通过集成数据接收和低功耗唤醒功能，实现了低功耗待机下的实时响应。

💡 主要创新点

• 提出一种可重构的接收器架构，可在数据接收模式和低功耗唤醒模式之间动态切换，降低待机功耗。
• 采用占空比唤醒方案，进一步减少平均功耗，同时保持对非周期性事件的快速响应。
• 将数据接收与唤醒接收集成于单一无线电中，无需额外唤醒电路，节省面积和复杂度。

🏷 关键词

📄 原文摘要

Demands for the low-power wide-area network (LPWAN) are increasing along with a growing market for low data-rate, long-range internet of things (IoT) applications. Although many radios have been released for various LPWAN standards, such as LTEM, NB-IoT, LoRa, Sigfox, and WiSUN, they are not suitable for always-on receive-standby operation due to the high DC power dissipation of the receiver (RX) (e.g., >10mW), mandating heavy synchronized duty-cycling. Therefore, LPWAN radios released so far are not suitable for the applications where events occur aperiodically and real-time response is essential. To maintain near-real-time communication while minimizing the RX standby power, the adoption of wake-up RX (WuRX) is emerging as an attractive solution [1-7]. Many

👥 作者与机构

Keun-Mok Kim1, Kyung-Sik Choi1, Hyunki Jung1,2, Byeonghun Yun1, Subin Kim2,

Wonkab Oh2, Eui-Soo Lee3, Sujin Park2, Eui-Rim Jeong3, Jinho Ko2, Sang-Gug Lee1 KAIST, Daejeon, Korea; 2PHYCHIPS, Daejeon, Korea Hanbat National University, Daejeon, Korea 1 3