NFC-DynFS: A way to realize dynamic field strength scaling during communication

Menghin, Manuel; Druml, Norbert; Steger, Christian; Weiß, Reinhold; Bock, R.; Haid, Josef

doi:10.1109/nfc.2013.6482438

Cited by 6 publications

(8 citation statements)

References 9 publications

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“…Optimization of power requirements and energy saving interface models in NFC chipset design are proposed in studies such as NIZE [ 59 ] and PTF Determinatior [ 60 ]. Adaptive and dynamic field strength scaling methodologies are studied for energy saving purposes [ 61 , 62 ].…”

Section: Nfc Technology Essentialsmentioning

confidence: 99%

The Survey on Near Field Communication

Çoşkun

Özdenizci

2015

Sensors

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Near Field Communication (NFC) is an emerging short-range wireless communication technology that offers great and varied promise in services such as payment, ticketing, gaming, crowd sourcing, voting, navigation, and many others. NFC technology enables the integration of services from a wide range of applications into one single smartphone. NFC technology has emerged recently, and consequently not much academic data are available yet, although the number of academic research studies carried out in the past two years has already surpassed the total number of the prior works combined. This paper presents the concept of NFC technology in a holistic approach from different perspectives, including hardware improvement and optimization, communication essentials and standards, applications, secure elements, privacy and security, usability analysis, and ecosystem and business issues. Further research opportunities in terms of the academic and business points of view are also explored and discussed at the end of each section. This comprehensive survey will be a valuable guide for researchers and academicians, as well as for business in the NFC technology and ecosystem.

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Section: Nfc Technology Essentialsmentioning

confidence: 99%

The Survey on Near Field Communication

Çoşkun

Özdenizci

2015

Sensors

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“…Fifty percent of the users decide to leave the room, while all who left manage to return to the room before missing their turn for being able to switch their turn and save their turn. In the simulation platform adopted, Figure 8 shows that the 24 users entered the room, while Figure 9 shows that about 50 percent of them left the room (5,7,9,11,13,15,17,19,21,23). All users who left were able to get their turn as they used the swap functionality to swap their ticket with someone in the waiting room until they return and become available in the waiting room.…”

Section: ) Scenario3mentioning

confidence: 99%

“…Arduino platform is our choice as it is both affordable and open source [10]. The client opens the application, scans the registering slave unit Near Field Communication (NFC) shield [11][12][13] using their NFC-enabled smartphone, and then either leaves the waiting area until they are notified to return with a visual and audio alert, or remain and use the entertainment options in the app. The app screen is designed to resemble a real status board to make it more intuitive for the user.…”

Section: Introductionmentioning

confidence: 99%

A Smart Mobile System for the Real-Time Tracking and Management of Service Queues

et.al.¹

2016

IJCDS

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This paper proposes a solution to the problem of client dissatisfaction with long waiting times associated with some services. This solution is a smart queue management system that provides real-time visual and audio updates to service requests via a smartphone app. Users receive digital tickets and are free to leave the waiting area until it is their turn to be served. If they choose to remain in the area, they have the option of listening to the signal of the television set that is typically muted for a better experience. The system comprises connected units forming a web of things. There are units for ticket registration and verification, audio capturing and streaming, queue management, and user units as smartphone applications. We have tested this system to ensure its functionality and report our results and possible improvements.

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“…The second part concerns the fact that different transponder commands demand different transponder power requirements, e.g., reading a memoryblock versus performing cryptographic operations. This also has to lead to a redetermination of the PTF and to a proper scaling [2].…”

Section: Dynamic Field Strength Scaling During Communicationmentioning

confidence: 99%

“…Furthermore, different operations, like reading data from the transponder or performing an encryption, lead to a change of the transponder's power requirements. The adaption of the magnetic field strength during communication is important, to preserve a proper supply for the transponder at all time [2]. • The RFID technology is able to read multiple transponders in range.…”

Section: Introductionmentioning

confidence: 99%

Using field strength scaling to save energy in mobile HF-band RFID-systems

et al. 2013

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Radio frequency identification (RFID) is a technology enabling a contactless exchange of data. This technology features the possibility to wirelessly transfer power to the transponder (opponent). HF-RFID is used in mobile devices like smart phones and shows potential for applications like payment, identification, etc. Unfortunately, the needed functionality increases the battery drain of the device. As a countermeasure, power-management techniques are implemented. However, these techniques commonly do not consider the whole system, which also consists of the communication to the transponder, to prevent wasting energy. One cross-system technique of reducing the wasted energy is magnetic field strength scaling, which regulates the power transfer to the transponder. This article shows three investigations made, regarding field strength scaling to prevent this wastage of energy. The results of one investigation, how to use field strength scaling at card detection phase in form of the PTF-Determinator method, is described in detail. This method determines the Power Transfer Function (PTF) during run-time and scales the provided power accordingly to save energy. As a case study the PTF-Determinator is integrated in an application to read digital business cards. The resulting power consumption and timing has been evaluated by simulation and measurement of a development platform for mobile phones. Furthermore, the impact of field strength scaling to the energy consumption of a state of the art NFC-enhanced smart phone has been analyzed. The results of the case study shows that up to 26% less transmission energy (energy drain of NFC) is needed, if field strength scaling is applied (proofen by measurement). According to this result a smart phone's battery drain (energy drain of the whole system) can be decreased by up to 13% by using field strength scaling for this case study.

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NFC-DynFS: A way to realize dynamic field strength scaling during communication

Cited by 6 publications

References 9 publications

The Survey on Near Field Communication

The Survey on Near Field Communication

A Smart Mobile System for the Real-Time Tracking and Management of Service Queues

Using field strength scaling to save energy in mobile HF-band RFID-systems

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