中国邮电高校学报(英文) ›› 2008, Vol. 15 ›› Issue (4): 51-54.doi:

• Wireless • 上一篇    下一篇

Multi-branch query tree protocol for solving RFID tag collision problem

焦传海,王可人   

  1. Laboratory 304 of Communications and Information Systems, Electronic Engineering Institute, Hefei 230037, China
  • 收稿日期:2008-05-10 修回日期:1900-01-01 出版日期:2008-12-30
  • 通讯作者: 焦传海

Multi-branch query tree protocol for solving RFID tag collision problem

JIAO Chuan-hai, WANG Ke-ren   

  1. Laboratory 304 of Communications and Information Systems, Electronic Engineering Institute, Hefei 230037, China
  • Received:2008-05-10 Revised:1900-01-01 Online:2008-12-30
  • Contact: JIAO Chuan-hai

摘要:

The technology of anti-collision is a key point in radio frequency identification (RFID) system. To avoid data collision, there are two approaches: ALOHA based algorithm and binary tree (BT) based algorithm. However, these cannot solve the collision problem completely, especially when the tag quantity is big and the tag ID is long. In this article, we present a multi-branch query tree (MBQT) protocol based on balanced incomplete block design (BIBD) code, and use 16-bit vectors derived from the BIBD as query prefix symbols of RFID reader. Compared with the conventional anti-collision algorithm, the theoretic analysis and simulation show that the proposed protocol improves the identification efficiency.

关键词:

RFID,;BIBD,;MBQT

Abstract:

The technology of anti-collision is a key point in radio frequency identification (RFID) system. To avoid data collision, there are two approaches: ALOHA based algorithm and binary tree (BT) based algorithm. However, these cannot solve the collision problem completely, especially when the tag quantity is big and the tag ID is long. In this article, we present a multi-branch query tree (MBQT) protocol based on balanced incomplete block design (BIBD) code, and use 16-bit vectors derived from the BIBD as query prefix symbols of RFID reader. Compared with the conventional anti-collision algorithm, the theoretic analysis and simulation show that the proposed protocol improves the identification efficiency.

Key words:

RFID;BIBD;MBQT