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arXiv 2504.03412cs.NI
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QuinID:基于频率选择天线实现基于FDMA的完全并行RFID

QuinID: Enabling FDMA-Based Fully Parallel RFID with Frequency-Selective Antenna

Xin Na, Jia Zhang, Jiacheng Zhang, Xiuzhen Guo, Yang Zou, Meng Jin, Yimiao Sun, Yunhao Liu, Yuan He

AI总结:

本文提出首个基于频分多址的完全并行RFID系统QuinID,利用声表面波组件设计频率选择天线实现极窄带响应,绕过标签功率与电路约束,实验显示读取速率提升五倍至每秒5000次。

摘要:

并行化无源射频识别(RFID)读取是现代物联网应用中一个至关重要但尚未解决的挑战。现有方法仍局限于时分操作,无法同时读取多个标签。本文提出QuinID,这是首个实现完全并行读取的频分多址(FDMA)RFID系统。我们创新性地利用标签天线的频率选择性而非传统数字FDMA,绕过了RFID标签的功率和电路约束。具体而言,我们基于声表面波(SAW)组件精心设计频率选择天线,以实现极窄带响应,使QuinID标签(即QuinTags)仅在其指定频段内工作。通过仔细设计匹配网络并消除各种干扰,定制的QuinReader能够同时与不同频段的多个QuinTags通信。QuinID与商用RFID系统保持高度兼容,标签成本低于10美分。我们实现了一个5频段QuinID系统,并在各种设置下评估其性能。结果表明读取速率提高了五倍,达到每秒5000次读取。

英文摘要:

Parallelizing passive Radio Frequency Identification (RFID) reading is an arguably crucial, yet unsolved challenge in modern IoT applications. Existing approaches remain limited to time-division operations and fail to read multiple tags simultaneously. In this paper, we introduce QuinID, the first frequency-division multiple access (FDMA) RFID system to achieve fully parallel reading. We innovatively exploit the frequency selectivity of the tag antenna rather than a conventional digital FDMA, bypassing the power and circuitry constraint of RFID tags. Specifically, we delicately design the frequency-selective antenna based on surface acoustic wave (SAW) components to achieve extreme narrow-band response, so that QuinID tags (i.e., QuinTags) operate exclusively within their designated frequency bands. By carefully designing the matching network and canceling various interference, a customized QuinReader communicates simultaneously with multiple QuinTags across distinct bands. QuinID maintains high compatibility with commercial RFID systems and presents a tag cost of less than 10 cents. We implement a 5-band QuinID system and evaluate its performance under various settings. The results demonstrate a fivefold increase in read rate, reaching up to 5000 reads per second.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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