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12th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery (ICNC-FSKD)

作者： Jiang, An Guangdong Agr Ind Business Polytech Coll Dept Comp Guangzhou 510507 Guangdong Peoples R China

ISBN: (纸本)9781509040933

Tag collision is a very important issue in RFID system. In order to improve the identification efficiency of the system, this paper proposes a collision avoidance anticollision algorithm based on subset partition (CABSP). The CABSP narrows the identification range and reduces the probability of tag collision by splitting tag subsets. On this basis, the process of tag identification is divided into two phases including of tag slot reservation phase and tag reading phase, the reader eliminates the idle slots of the tag reading phase by detecting whether there is a reservation collision in the slot reservation phase, and improves the identification efficiency by selecting the tag to be recognized according to the collision avoidance mechanism. Simulation results show that the CABSP algorithm reduces the collision slots in the process of tag identification, and the system throughput can be increased to 90.4%, the performance is better than other existing algorithms in the literature in terms of the identification efficiency and communication complexity.

关键词： RFID anti-collision algorithm subset division collision avoidance slot reservation

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Research on the Capture Effect for RFID Tag anti-collision algorithm 3rd

Research on the Capture Effect for RFID Tag Anti-Collision A...

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3rd Annual International Conference on Geo-Informatics in Resource Management and Sustainable Ecosystem (GRMSE)

作者： Xu, Chengshun Lu, Di Harbin Univ Sci & Technol Harbin Peoples R China

ISBN: (纸本)9783662491553;9783662491546

In the passive RFID system, the backscatter powers of tags are affected by the path loss and cause the capture effect. The capture effect makes some tags hidden and reduces the efficiency of identification. In this paper, an improved anti-collision algorithm capture effect tags optimization grouping (CEOG) is presented. The novel algorithm analysis the captures effects of RFID, then adopts Chebyshev estimation and group the capture effect optimization tags. By the theory and simulations, the CEOG make the system throughput exceed 60 %.

关键词： RFID anti-collision algorithm Capture effect Tags grouping Throughput

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collision Avoidance anti-collision algorithm Based On Subset Partition

Collision Avoidance Anti-Collision Algorithm Based On Subset...

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International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery

作者： An Jiang Department of Computer Guangdong Agriculture Industry Business Polytechnic College

ISBN: (纸本)9781509040940

Tag collision is a very important issue in RFID system. In order to improve the identification efficiency of the system, this paper proposes a collision avoidance anti-collision algorithm based on subset partition (CABSP). The CABSP narrows the identification range and reduces the probability of tag collision by splitting tag subsets. On this basis, the process of tag identification is divided into two phases including of tag slot reservation phase and tag reading phase, the reader eliminates the idle slots of the tag reading phase by detecting whether there is a reservation collision in the slot reservation phase, and improves the identification efficiency by selecting the tag to be recognized according to the collision avoidance mechanism. Simulation results show that the CABSP algorithm reduces the collision slots in the process of tag identification, and the system throughput can be increased to 90.4%, the performance is better than other existing algorithms in the literature in terms of the identification efficiency and communication complexity.

关键词： RFID anti-collision algorithm Subset division collision avoidance Slot reservation

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An Improved Dynamic Framed Slotted ALOHA anti-collision algorithm based on Estimation Method for RFID Systems

An Improved Dynamic Framed Slotted ALOHA Anti-collision Algo...

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IEEE International Conference on RFID (RFID)

作者： Xu, Ying Chen, Yifan Hunan Univ Coll Comp Sci & Elect Engn Changsha 410082 Hunan Peoples R China

ISBN: (纸本)9781479919376

In order to solve the collision problems between multiple RFID tags and improve the identification efficiency, this work presents an improved dynamic framed slotted ALOHA anti-collision algorithm for RFID systems. Based on the time slot distribution information, the algorithm estimates the average number of tags in each collision slot and then dynamically sets the frame size for unrecognized tags due to the collision between multiple tags. We theoretically analyzed the time complexity of the proposed algorithm. Simulation results demonstrate that our proposed algorithm outperforms other existing algorithms in the literature in terms of the identification efficiency and the total number of time slots.

关键词： RFID anti-collision algorithm ALOHA

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Power efficient anti-collision algorithm for RFID technology with added data security feature and its Implementation in VHDL

Power efficient anti-collision algorithm for RFID technology...

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IEEE Power, Communication and Information Technology Conference (PCITC)

作者： Bag, Joyashree Sahoo, Rashmi Ranjan Sarkar, Subir Kumar Jadavpur Univ Dept ETCE Kolkata India

ISBN: (纸本)9781479974559

In the field of RFID technology, a power efficient tag anti-collision protocol plays an important role in the entire system based on this technology. The query Tree scheme is one of the most important anti-collision protocols for RFID technology. Researchers have developed different Query algorithm with improved features, each time reducing the number of query iteration and idle slots. The EPC Gen protocol uses this anti-collision algorithm, which is popularly known and globally accepted for its secured data transmission feature but having a huge load of data itself. Low power design and implementation of the anti-collision protocol is another challenging area for cost effective RFID system. In our research work, we have implemented the protocol as low power single chip solution. Furthermore, we have included a data security scheme in this protocol for secured data transmission. VHDL code has been used for design purpose, Xilinx ISE 14.3 simulation tools to simulate the design and Kintex-7 FPGA board for implementation purpose. We have also implemented other anti-collision protocols with different bit size and a comparative study of performance evaluation has been provided.

关键词： RFID anti-collision algorithm Query Tree PCA rule VLSI RTL schematic FPGA

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A Slot Detection anti-collision algorithm with Hamming Weight Re-selection in RFID

A Slot Detection Anti-collision Algorithm with Hamming Weigh...

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6th IEEE International Conference on Software Engineering and Service Science (ICSESS)

作者： Shao Min Jin Xiaofang Jin Libiao Commun Univ China Informat Engn Sch Beijing Peoples R China

ISBN: (纸本)9781479983537

In this paper, an anti-collision algorithm based on Hamming eight e-selection (HWEA) in Radio Frequency Identification (RFID) system is proposed. Tags are identified in two situations: the unique selection of conventional random number and the Hamming weight of each tag. These two parameters are returned to the reader after coded. According to the received information of reader, the selection conditions of slots can be detected and the corresponding processing can be made. Reader skip all the idle slots and collided tags which have different Hamming weight from other tags in a collision slot. So there are more tags can be identified successfully in a frame. Analysis and simulation results illustrate that the identification efficiency of all unrecognized tags can be increased to above 80%, and it also outperforms existing algorithms on number of needed frames and transmission data.

关键词： anti-collision algorithm Hamming weight re-selection slots detection

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Hybrid anti-collision algorithm based on RFID system

Hybrid anti-collision algorithm based on RFID system

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2015 International Conference on Electric, Electronic and Control Engineering (ICEECE 2015)

作者： Jinan Zhang Yigang He Huan Chen Maoxu Liu School of Electrical Engineering and Automation Hefei University of Technology

A novel hybrid anti-collision algorithm is proposed based on the analysis of the binary tree algorithm and ALOHA algorithm that is the grouping dynamic frame slot AHOLA collision tacking algorithm(GDCA).Firstly,the proposed algorithm combines Dynamic Frame Slot ALOHA(DFSA) algorithm,collision Tracking Tree(CTT) algorithm and grouping idea ***,the dynamic tag estimation method is used to estimate the number of existing *** tags will be grouped and frame size within each group is determined according to the estimation *** last,the CTT algorithm is used to identify tags in the collision slots within each *** comparison of simulation shows that GDCA algorithm has higher throughput rate and less total number of slots than CTT algorithm and DFSA *** Radio Frequency Identification(RFID) system gets better performance with the proposed algorithm.

关键词： RFID system anti-collision algorithm DFSA CTT GDCA

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A Slot Detection anti-collision algorithm with Hamming Weight Re-selection in RFID

A Slot Detection Anti-collision Algorithm with Hamming Weigh...

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2015 6th IEEE International Conference on Software Engineering and Service Science(ICSESS 2015)

作者： Shao Min Jin Xiaofang Jin Libiao Information Engineering School Communication University of China （CUC）

In this paper, an anti-collision algorithm based on Hamming W eight R e-selection（HWEA） in Radio Frequency Identification（RFID） system is proposed. Tags are identified in two situations: the unique selection of conventional random number and the Hamming weight of each tag. These two parameters are returned to the reader after coded. According to the received information of reader, the selection conditions of slots can be detected and the corresponding processing can be made. Reader skip all the idle slots and collided tags which have different Hamming weight from other tags in a collision slot. So there are more tags can be identified successfully in a frame. Analysis and simulation results illustrate that the identification efficiency of all unrecognized tags can be increased to above 80%,and it also outperforms existing algorithms on number of needed frames and transmission data.

关键词： anti-collision algorithm Hamming weight reselection slots detection

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Group improved enhanced dynamic frame slotted ALOHA anti-collision algorithm

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JOURNAL OF SUPERCOMPUTING 2014年第3期69卷 1235-1253页

作者： Wang, Hui Xiao, Shengliang Lin, Feiyu Yang, Tianchu Yang, Laurence T. Changzhou Univ Changzhou Peoples R China Jonkoping Univ Jonkoping Sweden Changzhou Ubitech Co Ltd Changzhou Peoples R China Huazhong Univ Sci & Technol Wuhan 430074 Peoples R China

With the development of information technology and declining in the cost of tags, radio frequency identification (RFID) system has become more and more popular, which has been widely used in a lot of areas, such as logistics tracking, animals identification, medicine, electronic toll collection, inventory, asset management, manufacturing, etc. However, when we use RFID technology to identify the objects, tag collision is one of the important factors to influence the identification efficiency. Currently, Aloha-based algorithm is one of the popular anti-collision algorithms which performs well when the number of tags is small. But it is not very efficient for cases with large number of tags and some areas which tags' number can be estimated, such as warehouse, supermarket, the production lines of smart factory and so on. So in this paper, we proposed a new anti-collision algorithm called group improved enhanced dynamic frame slotted ALOHA (GroupIEDFSA) by estimating the number of unread tags first, comparing the maximum frame size and dividing tags into groups when the number of tags which are activated is large. What is more, compared with enhanced dynamic frame slotted ALOHA (EDFSA) algorithm in the process of identification, GroupIEDFSA algorithm will combine new group based on the unread tags' number. Simulation results show that the efficiency of GroupIEDFSA algorithm system improves by 20 % in time and over 50 % in rounds than EDFSA algorithm in the standard mode, and increases by 1 % in time when we used fast mode.

关键词： RFID anti-collision algorithm Improved enhanced dynamic frame slotted aloha Efficiency Group

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An Advanced anti-collision algorithm Based on Inter tag Communication Mechanism in RFID-Sensor Network 11

An Advanced Anti-collision Algorithm Based on Inter tag Comm...

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11th IEEE International Conference on Mobile Ad Hoc and Sensor Systems

作者： Li, Menglong Xie, Huan Wang, Weidong Li, Xiuhua Wang, Chaowei Zhang, Yinghai Beijing Univ Posts & Telecommun Informat & Elect Technol Lab POB 116 Beijing Peoples R China

ISBN: (纸本)9781479960361

In this paper, an advanced anti -collision algorithm in RFID-sensor network based on inter -tag communication mechanism is proposed to improve the performance of the system. By employing the "Tag Communication Slot" (TCS) and designing the relevant hardware, the tags can communicate with each other, transmit useful data to fewer tags and reduce the number of tags participating in the identification process. In this way, we can efficiently reduce the collision rate with the increase of tag number and improve the tag starvation problem in Dynamic Framed Slotted ALOHA algorithm (DFSA). The simulation results show that the TCS algorithm can greatly improve the system stability and identification efficiency especially in the case of large tag number.

关键词： anti-collision algorithm DFSA RFID-sensor network

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