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A Physical Layer Network Coding Based tag anti-collision algorithm for RFID System

Computers, Materials & Continua 2021年第1期66卷 931-945页

作者： Cuixiang Wang Xing Shao Yifan Meng Jun Gao School of Information Engineering Yancheng Institute of TechnologyYancheng224000China School of Computer Nanjing University of Posts and TelecommunicationNanjing210003China Modern Agricultural Resources Intelligent Management and Application Laboratory Huzhou Normal UniversityHuzhou313000China School of Science and Technology Troy UniversityTroy36082USA

In RFID(Radio Frequency IDentification)system,when multiple tags are in the operating range of one reader and send their information to the reader simultaneously,the signals of these tags are superimposed in the air,which results in a collision and leads to the degrading of tags identifying *** improve the multiple tags’identifying efficiency due to collision,a physical layer network coding based binary search tree algorithm(PNBA)is proposed in this *** pushes the conflicting signal information of multiple tags into a stack,which is discarded by the traditional anti-collision *** addition,physical layer network coding is exploited by PNBA to obtain unread tag information through the decoding operation of physical layer network coding using the conflicting information in the ***,PNBA reduces the number of interactions between reader and tags,and improves the tags identification *** analysis and simulation results using MATLAB demonstrate that PNBA reduces the number of readings,and improve RFID identification ***,when the number of tags to be identified is 100,the average needed reading number of PNBA is 83%lower than the basic binary search tree algorithm,43%lower than reverse binary search tree algorithm,and its reading efficiency reaches 0.93.

关键词： Radio frequency identification(RFID) tag anti-collision algorithm physical layer network coding binary search tree algorithm

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A Reliable tag anti-collision algorithm for Mobile tags

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IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS 2012年第5期E95D卷 1527-1530页

作者： Deng, Xiaodong Rong, Mengtian Liu, Tao Shanghai Jiao Tong Univ Shanghai Peoples R China

As RFID technology is being more widely adopted, it is fairly common to read mobile tags using RFID systems, such as packages on conveyer belt and unit loads on pallet jack or forklift truck. In RFID systems, multiple tags use a shared medium for communicating with a reader. It is quite possible that tags will exit the reading area without being read, which results in tag leaking. In this letter, a reliable tag anti-collision algorithm for mobile tags is proposed. It reliably estimates the expectation of the number of tags arriving during a time slot when new tags continually enter the reader's reading area and no tag leaves without being read. In addition, it gives priority to tags that arrived early among read cycles and applies the expectation of the number of tags arriving during a time slot to the determination of the number of slots in the initial inventory round of the next read cycle. Simulation results show that the reliability of the proposed algorithm is close to that of DFSA algorithm when the expectation of the number of tags entering the reading area during a time slot is a given, and is better than that of DFSA algorithm when the number of time slots in the initial inventory round of next read cycle is set to 1 assuming that the number of tags arriving during a time slot follows Poisson distribution.

关键词： RFID mobile tags tag anti-collision algorithm dynamic framed-slotted ALOHA Poisson distribution

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A Novel Fast anti-collision algorithm for RFID Systems

A Novel Fast Anti-Collision Algorithm for RFID Systems

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3rd International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2007)

作者： Wang, Jianwei Zhao, Yuping Wang, Dong Peking Univ Sch Elect Engn & Comp Sci Beijing Peoples R China

ISBN: (纸本)9781424413119

tag anti-collision algorithm for RFID system is a significant issue for fast tag identification. This paper presents a novel fast tag anti-collision algorithm called DJ (Detection and Jump) algorithm which splits the tag reading procedure into two steps including collision Detection and Jump Reading. The proposed new algorithm highly improves the tag reading efficiency comparing to the popular Q-algorithm in EPC (Electronic Product Code) international standard. Our simulation evaluations show that the proposed DJ algorithm outperforms Q-algorithm in both identification delay and power consumption.

关键词： RFID tag anti-collision algorithm collision resolution

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A Novel Fast anti-collision algorithm for RFID Systems

A Novel Fast Anti-Collision Algorithm for RFID Systems

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第三届IEEE无线通讯、网络技术暨移动计算国际会议

作者： Jianwei Wang Yuping Zhao Dong Wang School of Electronics Engineering and Computer Science Peking University China

关键词： RFID tag anti-collision algorithm collision resolution

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