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ENHANCED ENERGY-SAVING anticollision algorithmS WITH IMPROVING THROUGHPUT FOR RFID SYSTEM

Journal of Electronics(China) 2013年第1期30卷 40-48页

作者： Luo Zhiyong Jiang Jing Wang Ping Ministry of Education Key Lab of Industrial Wireless Network and Networked Control Chongqing University of Posts and Telecommunications

Tag collision algorithm is a key issue for energy saving and throughput with Radio Frequency IDentification (RFID) system more popular in sensing infrastructure of covering wider area on a large scale. Exploiting low energy consumption strategy would enable longer operational life of tags and reader with battery energy supply. And improving throughput is required on a large scale to preserve the capability of the correct reception. Therefore, this paper proposes an enhanced anti-collision algorithm called Dynamic Slotted with Muting (DSM), which uses multiple slots within a frame per node in a binary tree and takes tag estimation function to optimize the number of slots, and adds a mute command to put identified tags silence. The performance of the proposed algorithm is analytically provided, and simulation results show that DSM saves more than 40% energy consumptions both at reader and tags, and improves more than 35% throughput compared to the existing algorithms. Thus our algorithm is demonstrated to perform efficient energy savings at reader and tags with throughput improvement.

关键词： anti-collision algorithm Radio Frequency IDentification (RFID) Energy consumption Throughput Query tree

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Research on anti-collision Technology with Multiple Tags for RFID System

Research on Anti-collision Technology with Multiple Tags for...

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3rd International Conference on Mechanical and Electronics Engineering (ICMEE 2011)

作者： Hong, Zhang Zhang, Xinghui Guo, Jianli Weifang Univ Weifang 261061 Peoples R China Shandong Transport Vocat Coll Weifang 261061 Peoples R China Weifang Univ Sci & Technol Weifang 261011 Peoples R China

ISBN: (纸本)9783037852866

ALOHA algorithm can't prevent collision much effectively, the process of anti-collision is longer while the amount of tags plunged collision is numerous, and sometimes the problem about estimating mistakenly arises. Binary search algorithm, which identification efficiency is higher, the problem about estimating mistakenly can't arise, but its delay tima is more longer, security is short. The amelioration algorithm, return binary search algorithm can identify tag more effectively and rapidly, identifying time and the amount of tags is the relation of line form. The significance is very momentous that vast goods are identified, traced and managed by this amelioration algorithm.

关键词： Radio Frequency Identification Reader Tag anti-collision algorithm

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Performance Analysis for Multiple Tags Inventory in RFID 5th

Performance Analysis for Multiple Tags Inventory in RFID

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5th International Conference on Communications, Signal Processing, and Systems (CSPS)

作者： Wang, Li Tao, Wenyuan Hu, Weibo Song, Jiwei Tianjin Univ Sch Comp Software Tianjin Peoples R China Tianjin Elect Informat Coll Tianjin Peoples R China China Elect Standardizat Inst Beijing Peoples R China

ISBN: (纸本)9789811032295;9789811032288

This paper analyzed and contrasted multiple tags inventory performances of the two international air Interface standards and Chinese national standard in RFID. Given the innovation of technology and design ideas of the Chinese national standard, the problems of inventory were analyzed in the three standards. Afterwards, the performance was simulated by software and hardware platforms, and the performance of Chinese national standard [1] is better than EPC (EPCglobal Class-1 Generation-2 UHF RFID Protocol) [2] or ISO 18000-6B (Information Technology-Radio Frequency Identification for Item Management-Part 6: Parameters for Air Interface Communications at 860-930 MHz) [3].

关键词： RFID anti-collision algorithm Chinese national standard

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Probability Model of Time to collision Considering Sensor Accuracy 33

Probability Model of Time to Collision Considering Sensor Ac...

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33rd Chinese Control and Decision Conference (CCDC)

作者： Lei, Yang Huang, Zhiling Cen, Ming Chongqing Univ Posts & Telecommun Sch Automat Chongqing 400065 Peoples R China

ISBN: (纸本)9781665440899

The intelligent vehicle anti-collision system can effectively slow down or avoid the occurrence of traffic accidents and improve the driving safety of the vehicle. The time to collision (TTC) algorithm is not sufficient in anti-collision algorithm when the accuracy characteristics of different sensors are ignored. Therefore, this paper proposes an improved TTC threshold calculation method considering the influence of sensor detection error. In view of the influence of sensor detection error, a TTC probability model is constructed. In this model, the host vehicle (HV) speed, the target vehicle (TV) speed and the relative distance between them are regarded as a random process, and their distribution functions are established. Subsequently, these parameter distribution functions are used to construct the TTC probability model that approximates the normal distribution by Geary-Hinkley transformation. This model uses the collision probability index to calculate more reasonable TTC threshold. Experimental results were produced and comparative analyses were conducted for different cases. The obtained results confirm the effectiveness of the proposed TTC probability model.

关键词： Intelligent Vehicle anti-collision algorithm TTC Threshold Probability Model

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A Comparative Performance Evaluation Study of The Basic Binary Tree and Aloha Based anti-collision Protocols For Passive RFID System

A Comparative Performance Evaluation Study of The Basic Bina...

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24th International Conference on Microelectronics (ICM)

作者： Rennane, Ahmed Saadi, Hadjer Touhami, Rachida Yagoub, Mustapha C. E. USTHB Fac Elect & Informat LINS Bab Ezzouar Algeria Univ Ottawa ERML Dept Elect & Informat Ottawa ON Canada

ISBN: (纸本)9781467352895;9781467352918

RFID (Radio Frequency Identification) technology is one of the most important branches of the automatic identification technology which achieves the identification of targets by contactless communications. One of the major challenges for RFID systems is to avoid or solve collisions due to interference that might occur between tags which decrease the efficiency of RFID system. This paper focused on a detailed comparative performance evaluation study and an adoption of certain algorithms of anti-collision for passive RFID system, for the two families of solving collision: deterministic (according to the: QTA, CTTA, BS-QTA, BS-CTTA) and stochastic (ALOHA, SLOTTED ALOHA, np-CSMA). The simulation results for the two families that we get with protocols evaluation are based on their own proper evaluation parameters. Thus, for evaluating the simulation of the stochastic family, we have proposed a new performance metric which judges and correctly evaluates this anti-collision protocol;which is: the number of identified tags versus to the time. This metric provides a direct measure of the time taken to read a group of tags.

关键词： RFID anti-collision algorithm Protocols Binary Tree ALOHA Probabilistic methods deterministic methods

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New Couple-Resolution Blocking Tag Identification Protocol in RFID Systems with Capture Effect 7

New Couple-Resolution Blocking Tag Identification Protocol i...

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International Conference on Ubiquitous and Future Networks

作者： Choi, Hae-il Kim, Hyung-jik Choi, Sunwoong Kookmin Univ Dept Elect Engn Seoul South Korea

ISBN: (纸本)9781479989935

In RFID systems, some applications require to identify tags repeatedly. Many protocols have been proposed for this purpose, which quickly reidentify staying tags within communication range of the reader using the information obtained from the previous tag identification process. However, none of them considers the capture effect and may not work properly in real wireless communication environments. When multiple tags reply simultaneously to a reader and the capture effect takes place, the reader considers the strongest signal as a successful transmission and the others are ignored. In this paper, we analyze the impact of the capture effect on the identification performance of couple-resolution blocking (CRB) protocol. Modifying CRB protocol, we also propose a new capture effect-aware anti-collision protocol. Via computer simulation, we show that about 40% of slots can be reduced with the proposed protocol from the state-of-the-art protocol, GBT in a random topology when more than 20% of tags stay in the communication range of the reader.

关键词： anti-collision algorithm capture effect blocking protocol couple-resolution RFID tag identification

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APPLIED RESEARCH OF RFID TECHNOLOGY IN EXPRESS LOGISTICS INDUSTRY 12

APPLIED RESEARCH OF RFID TECHNOLOGY IN EXPRESS LOGISTICS IND...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Guo, Peng Zhang, Hai-Yan Li, Yong-Wei Shijiazhuang Univ Dept Elect & Informat Engn Shijiazhuang 050035 Peoples R China Shijiazhuang Posts & Telecommun Tech Coll Dept Postal Commun Management Shijiazhuang 050021 Peoples R China Hebei Univ Sci & Technol Coll Elect Engn Shijiazhuang 050018 Peoples R China

ISBN: (纸本)9781479902606

In order to improve the efficiency of express logistics enterprises, a mail automatic identification system with low power consumption is designed based on radio frequency identification technology. Considering the characteristics of express logistics enterprises, an improved anti-collision algorithm on the basis of binary search tree is introduced. The algorithm can modify the search preilX by a matrix to reduce the number of search. MATLAB simulation results show that the algorithm can effectively enhance the efficiency of tag identification and reduce the amount of data transmission compared with binary search algorithm and binary collision algorithm.

关键词： RFID Express logistics anti-collision algorithm MSP430 Low power consumption

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Simulation of the anti-collision Process of RFID Systems Based on Multiple Access Protocol Modeling

Simulation of the Anti-Collision Process of RFID Systems Bas...

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IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)

作者： Saadii, Hadjer Touhami, Rachida Yagoub, Mustapha C. E. USTHB Univ Elect & Informat Fac BP 32 Algiers Algeria Univ Ottawa Sch Elect Engn & Comp Sci Ottawa ON Canada

ISBN: (纸本)9781467307536

In this paper, the authors targeted multiple access protocols to analyze the problem of collision and collision avoidance in RFID systems. By considering user terminals as tags and access point as reader, the authors efficiently modelled the wireless communication channel by considering the capture effect. Otherwise, if the capture effect is not considered, the system is modelled under wired communication.

关键词： Multiple Access Protocols RFID anti-collision algorithm Aloha Slotted Aloha CSMA ISMA capture effect

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Variant enhanced dynamic frame slotted ALOHA algorithm for fast object identification in RFID system

Variant enhanced dynamic frame slotted ALOHA algorithm for f...

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International Workshop on anti-counterfeiting, Security, and Identification

作者： Peng, Qingsong Zhang, Ming Wu, Weimin Shanghai Maritime Univ Dept Comp Sci & Technol Shanghai 200135 Peoples R China Shanghai Maritime Univ Dept Elect Engn Shanghai 200135 Peoples R China

ISBN: (纸本)9781424410347

This paper analyses the practical faults existing in Enhanced Dynamic Frame Slotted ALOHA (EDFSA) algorithms, and discusses the strategy to improve the efficiency of anti-collision algorithm in RFID system. EDFSA algorithm divides the tags into a number of groups and allows only one group of tags to respond when the number of tags is much larger than optimal efficiency tags. However the efficiency of the system can still be improved. We propose a new anti-collision algorithm called by the name of Variant Enhanced Dynamic Frame Slotted ALOHA algorithm (VEDFSA) to improve the efficiency of the system that can solve the problem above by dynamic divide tags into groups during the anti-collision solving procedure.

关键词： RFID technology anti-collision algorithm dynamic slot allocation

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An improved Q-algorithm based on EPC Class 1 Generation 2 protocol 17

An improved Q-algorithm based on EPC Class 1 Generation 2 pr...

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2nd International Conference on Intelligent Information Processing (IIP)

作者： Peng, Lin Zeng, Yanhan Liu, Hanyu Tan, Hong-zhou Guangzhou Univ Sch Phys & Elect Engn Guangzhou Guangdong Peoples R China SYSU CMU Shunde Int Joint Res Inst Guangzhou Guangdong Peoples R China

ISBN: (纸本)9781450352871

In this paper, an improved Q-algorithm based on Dynamic Framed Slotted Aloha (DFSA) used in EPC Class 1 Generation 2 (C1G2) protocol is proposed. In the proposed anti-collision algorithm, the total number of frames and the unnecessary sending of QueryAdjust commands are reduced in the recognition process by calculating the optimal threshold for adjusting Q. Besides, the identification efficiency and speed are improved by utilizing the Binary Selection (B-S) with collision Processing Threshold (CPT) strategy and Prediction Bit (PB), respectively. Simulation results show that the improved Q-algorithm costs less time slots and the system throughput fluctuates around 47% which is at least 20% higher than EPC C1G2.

关键词： UHF RFID anti-collision algorithm EPC C1G2 Q-algorithm

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