...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Computer Communications >A knowledge-based Query Tree with Shortcutting and Couple-Resolution for RFID tag identification
【24h】

A knowledge-based Query Tree with Shortcutting and Couple-Resolution for RFID tag identification

机译：基于知识的查询树，RFID标签识别的捷径和耦合分辨率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In Radio Frequency Identification (RFID) systems, the reader identifies tags through communications over a shared wireless channel. However, when multiple tags transmit their IDs simultaneously, their signals collide, thereby prolonging the identification delay. However, in some applications, the RFID system has the availability of a database containing the IDs of all the tags that may possibly appear. The present study proposes a novel knowledge-based Query Tree with Shortcutting and Couple Resolution (QTSC) protocol for reducing the identification delay in RFID systems with such a database. In the proposed protocol, a knowledge-based query tree is first constructed to store the queries required to identify all the possible tags in the database. Then, at identifying appearing tags, the tags actually appear among possible tags, shortcutting and couple -resolution techniques are employed to skip redundant queries in the query tree and transmit two ID prefixes simultaneously within the same slot, respectively. The simulation results show that compared to the existing knowledge-based protocols, Knowledge Query Tree (KQT) and Heuristic Query Tree (HQT) protocols, QTSC reduces the identification delay by 60.5% and 39.0%, respectively.
机译：在射频识别（RFID）系统中，读者通过共享无线信道上的通信识别标签。然而，当多个标签同时发送其ID时，它们的信号碰撞，从而延长了识别延迟。但是，在某些应用程序中，RFID系统具有包含可能出现的所有标记的ID的数据库的可用性。本研究提出了一种新颖的基于知识的查询树，具有短路和耦合分辨率（QTSC）协议，用于降低具有此类数据库的RFID系统中的识别延迟。在所提出的协议中，首先构造一种基于知识的查询树以存储识别数据库中所有可能标记所需的查询。然后，在识别出现的标签时，标签实际上出现在可能的标签中，使用短梳理和耦合 - 缩写技术在查询树中跳过冗余查询，并分别在同一时隙中同时发送两个ID前缀。仿真结果表明，与现有的基于知识的协议，知识查询树（KQT）和启发式查询树（HQT）协议相比，QTSC分别将识别延迟降低了60.5％和39.0％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号