An Interference-Aware 5.8GHz Wake-Up Radio for ETCS

📋 论文概要

本文提出了一种用于电子收费系统（ETCS）的5.8GHz干扰感知唤醒无线电，解决了传统唤醒接收机在存在干扰时灵敏度下降的问题。通过采用干扰感知技术，实现了低功耗与高灵敏度的兼顾。

💡 主要创新点

• 提出干扰感知架构，在5.8GHz频段实现唤醒接收机，有效抑制带外干扰
• 采用简单RF包络检波器配合低功耗设计，满足ETCS对电池寿命的严苛要求

🏷 关键词

📄 原文摘要

PHYCHIPS, Daejeon, Korea 1 2 Wake-up radios have been a popular transceiver architecture in recent years for battery-powered applications such as wireless body area networks (WBANs) [1], wireless sensor networks (WSNs) [2,3], and even electronic toll collection systems (ETCS) [4]. The most important consideration in implementing a wake-up receiver (WuRX) is low power dissipation while maximizing sensitivity. Because of this requirement of very low power, WuRX are usually designed by a simple RF envelope detector (RFED) consisting of Schottky diodes [1,3] or MOSFETs in the weak inversion region [2] without active filtering or amplification of the input signal. Therefore, the performance of the RFED itself is critical for attaining good sensitivity of the WuRX. Moreover, the poor filtering of the input signal renders the WuRX vulnerable to interferers from nearby terminals with high transmit

👥 作者与机构

Jeongki Choi1, Kanghyuk Lee2, Seok-Oh Yun2, Sang-Gug Lee1, Jinho Ko2

KAIST, Daejeon, Korea