Using volatile state storage for substantial improvement in RFID throughput
Using volatile state storage for substantial improvement in RFID throughput
复制标题
使用易失性状态存储显着提高 RFID 吞吐量
DOI：
10.1109/autoid.2005.49
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Rao
中科院分区：
文献类型：
--
作者：
V. Pillai;J. Peternel;H. Heinrich;R. Martinez;K. Rao
当今RFID系统面临的主要问题之一是标签不被读取，导致标签识别率降低。这更有可能发生，因为大量的标签是存在于一个小的外壳。我们研究了缺失标签的原因之一，即相邻标签之间的耦合。我们提出了一个理论解释，标签之间的耦合的原因和机制，它导致标签不被识别。研究了使用易失态存储单元的概念。我们以ISO 18000-6B协议为例，研究状态存储如何帮助消除遗漏的标签。给出了具有状态存储能力的芯片的实验结果，并比较了使用状态存储和不使用状态存储的识别率。可以看出，当使用状态存储时，所有标签都被识别，并且大大优于不使用状态存储的标签识别。这是第一次，我们提出的结果表明状态存储的概念对于无源RFID操作是多么不可或缺。这个概念很容易扩展到无源RFID操作的任何协议。
One of the major problems facing RFID systems today is that of tags not being read, resulting in reduced tag identification rates. This is more likely to happen as large number of tags is present in a small enclosure. We examine one of the causes for missed tags, namely coupling between adjacent tags. We present a theoretical explanation for the cause of coupling between tags and the mechanism by which it causes tags not to be identified. The concept of using a volatile state storage cell is examined. We study how state storage helps to eliminate missed tags, using the ISO 18000-6B protocol as an illustrative example. Experimental results using chips that have state storage capability are presented and we compare identification rates with and without using state storage. It is seen that when state storage is used, all tags are identified and is vastly superior to tag identification without state storage. For the first time, we present results showing how indispensable the concept of state storage is for passive RFID operation. The concept is readily extended to any protocol for passive RFID operation.