A Passive Crystal-Less Wi-Fi-to-BLE Tag Demonstrating Battery-Free FDD Communication with Smartphones

📋 论文概要

该论文提出了一种无源、无晶振的Wi-Fi到BLE标签，实现了与智能手机的无电池频分双工（FDD）通信。解决了传统BLE/Wi-Fi IoT设备功耗高、依赖电池或电源的问题，通过反向散射技术实现低功耗兼容现有基础设施。

💡 主要创新点

• 首次实现无源无晶振的Wi-Fi到BLE标签，无需外部晶振和电池。
• 支持与智能手机的FDD通信，兼容现有BLE/Wi-Fi硬件。
• 利用反向散射技术实现极低功耗，适用于大规模IoT部署。

🏷 关键词

📄 原文摘要

of Things (IoT) applications become increasingly widespread, wireless connectivity presents stringent requirements on low power, low cost, and compatibility with widely deployed commodity hardware such as BLE/Wi-Fi-embedded devices. Supporting established communication standards is necessary for seamless integration with current infrastructure. Conventional BLE/Wi-Fi-compatible IoT devices require a mW-level power supply, which limits the lifetime and increases the hardware cost of battery or wall power [1]. In recent years, passive IoT tags based on backscatter communication have become a good candidate for low-power low-cost IoT applications due to battery elimination [2-5]. For example, a continuous-waveform (CW) signal source

👥 作者与机构

Ziyi Chang*1, Qijing Xiao*1, Cheng Chen2, Weixiao Wang1, Xin Hu1,

Changgui Yang1, Zhuhao Li1, Yuxuan Luo1, Bo Zhao1 Zhejiang University, Hangzhou, China Microaiot, Hangzhou, China *Equally-Credited Authors (ECAS) 1 2 As the Internet