华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (1): 9-13.doi: 10.3969/j.issn.1000-565X.2010.01.002

• 电子、通信与自动控制 • 上一篇    下一篇

一种改进的阅读器分布式功率控制算法

 戴宏跃  姚锡凡  梁爽   

  1. 华南理工大学 机械与汽车工程学院, 广东 广州 510640
  • 收稿日期:2009-01-13 修回日期:2009-04-06 出版日期:2010-01-25 发布日期:2010-01-25
  • 通信作者: 戴宏跃(1974-),男,博士后,主要从事RFID技术研究. E-mail:hyue.dai@mail.scut.edu.cn
  • 作者简介:戴宏跃(1974-),男,博士后,主要从事RFID技术研究.
  • 基金资助:

    国家“863”计划项目(2007AA04Z111)

An Improved Distributed Power Control Algorithm for Readers

Dai Hong-yue  Yao Xi-fan  Liang Shuang   

  1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong
  • Received:2009-01-13 Revised:2009-04-06 Online:2010-01-25 Published:2010-01-25
  • Contact: 戴宏跃(1974-),男,博士后,主要从事RFID技术研究. E-mail:hyue.dai@mail.scut.edu.cn
  • About author:戴宏跃(1974-),男,博士后,主要从事RFID技术研究.
  • Supported by:

    国家“863”计划项目(2007AA04Z111)

摘要: 针对现有阅读器功率控制算法存在随机退避机制的不确定性、难以设置算法相关参数等不足,提出了一种改进的阅读器分布式功率控制(EDPC)算法.该算法通过合理设置阅读器的工作时序和改善阅读器对工作时隙的选择机制来提高阅读器功率控制的效率与可靠性.仿真实验结果表明,与DAPC、PPC算法相比,EDPC算法的检测范围明显扩大,检测所需时间大大减少,提高了系统的整体性能

关键词: 分布式功率控制, 阅读器网络, 时隙, 性能

Abstract:

As the parameter setting, available power control algorithms for readers exist uncertain random backoff and insufficient in this paper presents an improved distributed power control algorithm marked as EDPC. In this algorithm, the working time sequence of the reader is reasonably set and the selection mechanism of working time slot is improved, thus increasing the efficiency and reliability of power control. Simulated results indicate that, as compared with the existing DAPC and PPC algorithms, the proposed algorithm enlarges the detection range of the reader, shortens the detection time, and improves the integrated performance of the reader system.

Key words: distributed power control, reader network, time slot, performance