Telecommunications Science ›› 2017, Vol. 33 ›› Issue (10): 1-147.doi: 10.11959/j.issn.1000-0801.2017273

• research and development •     Next Articles

A novel fast tag number estimation algorithm

Yinghua CUI   

  1. Beijing Information Science and Technology University,Beijing 100085,China
  • Revised:2017-09-25 Online:2017-10-01 Published:2017-11-13
  • Supported by:
    The National Natural Science Foundation of China(61340005);Beijing Natural Science Foundation of China(4132012);Project of Beijing Education Committee Science and Technology Development Plan(KM201411232011);Beijing Outstanding Personnel Training Project(2013D005007000006)

Abstract:

Tag number estimation is one of the key technologies in radio frequency identification (RFID) system.The conventional estimation algorithms usually interrogate all time slots before estimating the tag quantity,which lead to large payload and time consumption.A rapid estimation algorithm was proposed.By judging the collision of the first 4 slots in each frame,the Q parameter values could be adjusted quickly,and then the number of tag estimates could be obtained by querying a small number of slots.Simulation results show that compared with the traditional tag estimation algorithm,the proposed algorithm has the advantages of fast estimation speed and small estimation error,and is very suitable for fast estimation.

Key words: radio frequency identification, tag estimation, slot adjustment

CLC Number: 

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