计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (9): 115-117.

• 网络、通信、安全 • 上一篇    下一篇

一种ALOHA算法的帧长度调整方法

黄 仁1,张 静1,程 平2   

  1. 1.重庆大学 计算机学院,重庆 400030
    2.重庆腾帆科技有限公司,重庆 400030
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-03-21 发布日期:2011-03-21

New frame size adjusting method for ALOHA algorithm

HUANG Ren1,ZHANG Jing1,CHENG Ping2   

  1. 1.School of Computer,Chongqing University,Chongqing 400030,China
    2.Chongqing Tengfan Technology Company,Chongqing 400030,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-03-21 Published:2011-03-21

摘要: 在介绍动态帧时隙ALOHA算法的基础上,提出了一种帧长度调整算法。该方法利用一帧周期中碰撞及正确接收的信息推测阅读器有效范围内可能存在的标签数目,指导阅读器设定适当的值继续下一帧清点。仿真表明该方法具有可行性和实用性。

关键词: 无线射频识别(RFID), 帧时隙ALOHA, 防碰撞

Abstract: Based on an introduction of an anti-collision algorithm called dynamic framed slotted ALOHA,this paper proposes a new frame size adjusting method for the RFID system.The data of the successful slots number and the collision number in the current frame are used for predicting the number of the tags in the valid area of the reader.Thus the reader can use a more fitting frame size value to continue the inventory of the tag population in a new frame.The results of simulation demonstrate that this method is feasible and practical.

Key words: Radio Frequency Identification Devices(RFID), frame slotted ALOHA, anti-collision