⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种基于自干扰抵消（CANCELLATION）的环境物联网超低功耗通信系统，通过全双工天线和自干扰抵消芯片实现高达125dB的抵消，有效消除低中频相位噪声泄漏，打破了传统反向散射系统中距离与功耗的权衡。最终标签在92nW功耗下实现32米距离的1kb/s通信。
Abstract This paper presents a system that breaks the trade-off between range and power present in conventional wireless backscatter systems caused by phase noise leakage at low intermediate frequencies (IFs). By employing a self-interference cancellation chip together with a full-duplex antenna that achieves up to 125dB of cancellation, spectral leakage can be effectively eliminated, allowing for the developed backscatter tags to operate down to 92nW for communication at up to 32m at 1kb/s. Ambient IoT envisions being able to power and interrogate smart sensor tags via a single access point (AP) such as a handheld device or router to enable convenient and low-cost data uplinks. Ambient IoT-style tags should: 1) operate with low-power - ideally ≤1μW - to
Hany Abolmagd1,2, Shih-Kai Kuo3, Md Nazmul Hasan1, Sreevatsank Kadaveru3, Aboozar Ghorbani Nejad1, Manideep Dunna3, Ata Khorami1, Yichen Yu3,
Dinesh Bharadia3, Patrick Mercier3, Sudip Shekhar1 University of British Columbia, Vancouver, Canada, 2now with Nokia, Ottawa, Canada, 3University of California, San Diego, CA 1