Indoor RFID localization algorithm based on adaptive bat algorithm

Aiming at the problem that long time-consuming and poor positioning accuracy using geometric method in the traditional UHF RFID indoor localization algorithm, an RFID indoor positioning algorithm based on adaptive bat algorithm (ABA) was proposed.Firstly, the phase of multiple frequency points was o...

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Bibliographic Details
Published inTongxin Xuebao Vol. 43; pp. 90 - 99
Main Authors Liangbo XIE, Yuyang LI, Yong WANG, Mu ZHOU, Wei NIE
Format Journal Article
LanguageChinese
Published Editorial Department of Journal on Communications 01.08.2022
Subjects
adaptive bat algorithm
indoor location algorithm
radio frequency identification
tent reverse learning
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ISSN1000-436X

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Summary:Aiming at the problem that long time-consuming and poor positioning accuracy using geometric method in the traditional UHF RFID indoor localization algorithm, an RFID indoor positioning algorithm based on adaptive bat algorithm (ABA) was proposed.Firstly, the phase of multiple frequency points was obtained by frequency hopping technology, and the location evaluation function of bat algorithm was established based on the angle information of multiple signal classification (MUSIC) algorithm and the distance information of clustering.Secondly, the bat location was initialized by tent reverse learning to increase the diversity of the population, and the adaptive weight factor was introduced to update the bat location.Finally, the target position was searched iteratively based on the position evaluation function to achieve fast centimeter level positioning.Experimental results show that the median localization error of the proposed algorithm is 7.74 cm, and the real-time performance is improved by 12 times compare
ISSN:1000-436X