Adaptive Field Strength Scaling: A Power Optimization Technique for Contactless Reader / Smart Card Systems

Druml, Norbert; Menghin, Manuel; Steger, Christian; Weiß, Reinhold; Genser, Andreas; Bock, Holger; Haid, Josef

doi:10.1109/dsd.2012.20

Cited by 6 publications

(3 citation statements)

References 14 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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“…One possibility to acquire the power consumption of the transponder during run-time is using the principle of using power estimation units directly on the transponder. This information can be transferred to the reader afterwards [12].…”

Section: Power Requirements Of the Passive Transpondermentioning

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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“…The consistent development of monetary transactions and access control market using NFC has driven the aggressive deployment of NFC readers in gadgets, stores, and different infrastructures [8]. The design of NFC readers are structured for maximum field strength requirements [9]. There is a relationship between the quality of the magnetic field and the induced voltage in NFC systems [10].…”

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confidence: 99%

An Improved Energy Saving Technique for Wireless Power Transfer in Near Field Communication Systems

Adebisi

Abdulsalam

IJIKE

2023

IJEEI

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In this work, an improved communication algorithm was developed to reduce energy wastage in a Near Field Communication (NFC) system using dynamic field Strength scaling technique. With a variable resistor in the reader coil, the field strength of the system was scaled in real-time by adjusting the value of the resistor in relation to distance. This system was tested with the advanced design system's Application Extension Language (AEL) and simulated on Advanced Digital Technology. The results showed a responsive change in the magnetic field when the two scenarios (with and without optimization) were simulated. There was a 66% change in energy transfer within the time frame referenced. Results further indicated that the adoption of the proposed algorithm could help engineers to design a more effective NFC system.

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Adaptive Field Strength Scaling: A Power Optimization Technique for Contactless Reader / Smart Card Systems

Cited by 6 publications

References 14 publications

The Survey on Near Field Communication

The Survey on Near Field Communication

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

An Improved Energy Saving Technique for Wireless Power Transfer in Near Field Communication Systems

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