Stability of synchronous queued RFID networks

Queued Radio Frequency Identification (RFID) networks arise naturally in many applications, where tags are grouped into batches, and each batch must be processed before the next reading job starts. In these cases, the system must be able to handle all incoming jobs, keeping the queue backlogs bounded. This property is called stability. Besides, in RFID networks, it is common that some readers cannot operate at the same time, due to mutual interferences. This fact reduces the maximum traffic that readers can process since they have to share the channel. Synchronous networks share the channel using a TDMA approach. The goal of this work is to analytically determine whether a synchronous queued RFID network attains stable operation under a given incoming traffic. Stability depends on the service rate, which is characterized in this paper using an exact numerical method based on a recursive analytical approach, overcoming the limitations of previous works, which were based on simplifications. We also address different flow optimization problems, such as computing the maximum joint traffic that a network can process stably, selecting the minimal number of readers to process a given total load, or determining the optimal timeslot duration, which are novel in the RFID literature.Ministerio de Economía, Industria y Competitividad | Ref. TEC2016-76465-C2-1-

Stability of synchronous queued RFID networks

Queued Radio Frequency Identification (RFID) networks arise naturally in many applications, where tags are grouped into batches, and each batch must be processed before the next reading job starts. In these cases, the system must be able to handle all incoming jobs, keeping the queue backlogs bounded. This property is called stability. Besides, in RFID networks, it is common that some readers cannot operate at the same time, due to mutual interferences. This fact reduces the maximum traffic that readers can process since they have to share the channel. Synchronous networks share the channel using a TDMA approach. The goal of this work is to analytically determine whether a synchronous queued RFID network attains stable operation under a given incoming traffic. Stability depends on the service rate, which is characterized in this paper using an exact numerical method based on a recursive analytical approach, overcoming the limitations of previous works, which were based on simplifications. We also address different flow optimization problems, such as computing the maximum joint traffic that a network can process stably, selecting the minimal number of readers to process a given total load, or determining the optimal timeslot duration, which are novel in the RFID literature.This work was supported by the Project AIM, (AEI/FEDER, EU) under Grant TEC2016-76465-C2-1-R

Mobile Tag Reading in a Multi-reader Rfid Environment

Radio Frequency Identification (RFID) refers to an emerging technology that intends, but not limited to replace barcode technology. RFID system assures to provide an effective inventorying, tracking and monitoring of any sorts of products in any field of applications. Recently, the large scale deployment of RFID system in supply chain management has necessities the use of multiple readers. Unfortunately, multi-reader RFID system suffers from reader collision problems that severely affect the system performance. Hence, this thesis aims to propose a novel framework for multi-reader RFID system based on Framed Slotted ALOHA protocol. The proposed framework is specific to a scenario in supply chain where a tag affixed to an item is in motion that moves on a conveyor belt and multiple readers which are fixed around the conveyor belt are supposed to read all the items. This work also determines the best pattern for the distribution of the tags on the conveyor belt.Computer Science Departmen

Clone tag detection in distributed RFID systems

Although Radio Frequency Identification (RFID) is poised to displace barcodes, security vulnerabilities pose serious challenges for global adoption of the RFID technology. Specifically, RFID tags are prone to basic cloning and counterfeiting security attacks. A successful cloning of the RFID tags in many commercial applications can lead to many serious problems such as financial losses, brand damage, safety and health of the public. With many industries such as pharmaceutical and businesses deploying RFID technology with a variety of products, it is important to tackle RFID tag cloning problem and improve the resistance of the RFID systems. To this end, we propose an approach for detecting cloned RFID tags in RFID systems with high detection accuracy and minimal overhead thus overcoming practical challenges in existing approaches. The proposed approach is based on consistency of dual hash collisions and modified count-min sketch vector. We evaluated the proposed approach through extensive experiments and compared it with existing baseline approaches in terms of execution time and detection accuracy under varying RFID tag cloning ratio. The results of the experiments show that the proposed approach outperforms the baseline approaches in cloned RFID tag detection accuracy

Enhancing RFID data quality and reliability

This thesis addressed the problem of data quality, reliability and energy consumption of networked Radio Frequency Identification systems for business intelligence applications decision making processes. The outcome of the research substantially improved the accuracy and reliability of RFID generated data as well as energy depletion thus prolonging RFID system lifetime

A fog computing framework for scalable RFID systems in global supply chain management

With the rapid proliferation of RFID systems in global supply chain management, tracking every object at the individual item level has led to the generation of enormous amount of data that will have to be stored and accessed quickly to make real time decisions. This is especially critical for perishable goods supply chain such as fruits and pharmaceuticals which have enormous value tied up in assets and may become worthless if they are not kept in precisely controlled and cool environments. While Cloud-based RFID solutions are deployed to monitor and track the products from manufacturer to retailer, we argue that Fog Computing is needed to bring efficiency and reduce the wastage experienced in the perishable produce supply chain. This paper investigates in-depth: (i) the application of Fog Computing in perishable produce supply chain management using blackberry fruit as a case study; (ii) the data, computations and storage requirements for the fog nodes at each stage of the supply chain; (iii) the adaptation of the architecture to the general perishable goods supply chain; and (iv) the benefits of the proposed fog nodes with respect to monitoring and actuation in the blackberry supply chain

Advanced Radio Frequency Identification Design and Applications

Radio Frequency Identification (RFID) is a modern wireless data transmission and reception technique for applications including automatic identification, asset tracking and security surveillance. This book focuses on the advances in RFID tag antenna and ASIC design, novel chipless RFID tag design, security protocol enhancements along with some novel applications of RFID

Product traceability in manufacturing industries: Business case and pilot project.

Innovation is increasing rapidly in every sector of the industry. This improvement and development are imperative to industries. Some are up-to-date, and others are improving. We are already witnessing the era of technology-dependent industry, where technology plays a key role in the manufacturing processes. Disruptive technologies are changing the way enterprises operate. It is essential for the industries which are focused on delivering fast and reliable service to the clients. As the technology and innovation are increasing, they could help the ceramic industry for the options presently available in interrelated technology, which are already impacting the industrial development in Industry 4.0 During previous industrialization eras there have been many improvements in different industrial sectors, which have led to rapid growth universally across industries. The present research included the review of approaches towards the ceramic traceability industry. This thesis presents a discussion on traceability of products in the ceramic industry by observing the production process. There are many stages of the production process where the materials and products are difficult to track, However, industries are concerned about the quantity and number of products produced that will meet the expectations at the end. It is challenging for the enterprises to manage, organize and trace the products throughout the manufacturing process, from raw material till final packaging. Radio Frequency Identification (RFID) systems are a common and useful tool in manufacturing, supply chain management, and retail inventory control. Optical barcodes, another universal automatic identification system, have been a familiar packaging feature on consumer items for years. Due to advances in silicon manufacturing technology, RFID costs have dropped significantly. Soon, low-cost RFID “electronic product codes” or “smart-labels” may be a practical replacement for optical barcodes on consumer items. Unfortunately, the universal deployment of RFID devices in consumer items may pose new security and privacy risks not present in closed manufacturing environments. This thesis presents an introduction to RFID technology, identifies several potential threats to security and privacy, and offers several practical proposals for efficient security mechanisms.N/