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In this chapter, we focus on detecting missing multi-tagged objects. The key technicality is to build a filter from a subset of tags rather than the entire set, to avoid redundant detection of individual objects and reduce overall detection time. Specifically, we first provide a basic solution based on Bloom filter which can specify only tags in the chosen subset to participate in final detection. To further improve time efficiency, we propose an advanced protocol that exploits tag ID knowledge and sparsity of slots mapped by the chosen subset to build a more compact compressive filter.

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Compact Filter-Based Access Protocol for Multi-Tagged RFID Systems

  • 章节

  • 发表日期：

    2026年

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  • Rongrong Zhang,
  • Hao Liu

摘要

In this chapter, we focus on detecting missing multi-tagged objects. The key technicality is to build a filter from a subset of tags rather than the entire set, to avoid redundant detection of individual objects and reduce overall detection time. Specifically, we first provide a basic solution based on Bloom filter which can specify only tags in the chosen subset to participate in final detection. To further improve time efficiency, we propose an advanced protocol that exploits tag ID knowledge and sparsity of slots mapped by the chosen subset to build a more compact compressive filter.