Field Communication Applications Research Articles

Near Field Communication Applications in Modern Library System: A Review

Near Field Communication is a type of Radio Frequency technology that permits exchange of information over a small distance by versatile phones, computers, labels or other electronics devices. This paper is based on Near Field Communication reviews, features and usefulness of the innovation and summarizes the wide range of its present and expected applications in modern era. The aim of the paper is to explore the impact of NFC technology and its applications on libraries and information centers and proposed system will be helpful in the advancement of traditional Library management system.

Development of Meandered Microstrip Antenna for RFID Application

Antenna miniaturization has become one important research, especially in mobile communication technology development. This paper presents the development of a miniaturized antenna for RFID application (924 MHz). Meandering technique has been adopted to create a geometrically small antenna relative to its operating frequency. Measurement result shows that the fabricated antenna inherits low return loss, down to -25.915 dB. The geometry of the antenna is 25.54 mm x 16 mm, which is much smaller than its resonance wavelength (0.079? x 0.049?). The measured gain is relatively small, of about -12 dBi. Nevertheless, the obtained parameters are acceptable since the antenna is meant for near field communication application.

Improving the <inline-formula> <tex-math notation="LaTeX">${Q}$ </tex-math> </inline-formula>-Factor of Printed HF RFID Loop Antennas on Flexible Substrates by Condensing the Microstructures of Conductors

High frequency (HF) radio frequency identification (RFID) loop antennas are popular for HF RFID, energy transfer and near field communication applications. One of the major parameters defining the working range of HF RFID antennas is their ${Q}$ -factor. Printing techniques are the ideal method for mass fabrication of HF RFID loop antennas. However, due to the relatively low conductivity of the inks available on the market, the ${Q}$ -factor of the printed HF loop antenna tends to be low and in many cases, fails to meet the working range requirements. This paper reports two methods to condense the microstructures of the conductors in order to improve the ${Q}$ -factors of printed HF RFID loop antennas. Both thermal compression (pressing the sample at elevated temperature) and near-infrared annealing are studied, and the results have demonstrated that both approaches are efficient in improving the ${Q}$ -factors of printed loop antennas.

Tap-Wave-Rub: Lightweight Human Interaction Approach to Curb Emerging Smartphone Malware

Malware is a burgeoning threat for smartphones and continuing advancing. Traditional defenses to malware, however, are not suitable for smartphones due to their resource intensive nature. This necessitates the design of novel mechanisms that can consider the specifics of the smartphone malware and smartphones themselves. In this paper, we introduce a lightweight permission enforcement approach-Tap-Wave-Rub (TWR)-for smartphone malware prevention. TWR is based on simple cyber-physical human interactions, i.e., human gestures, that are very quick and intuitive but less likely to be exhibited in users' daily activities. Presence or absence of such gestures, prior to accessing an application, can effectively inform the OS whether the access request is benign or malicious. In particular, we present the design of two mechanisms: 1) acceleration-based phone tapping detection and 2) proximity-based finger tapping, rubbing, or hand waving detection. The first mechanism is geared for near field communication applications, which usually require the user to tap her phone with another device. The second mechanism involves very simple gestures, i.e., tapping or rubbing a finger near the top of phone's screen or waving a hand close to the phone, and broadly appeals to many applications (e.g., SMS). In addition, we present the TWR-enhanced Android permission model, the prototypes implementing the underlying gesture recognition mechanisms, and a variety of novel experiments to evaluate these mechanisms. Our results suggest the proposed approach could be very effective for malware detection/prevention, with quite low false positives and false negatives, while imposing little to no additional burden on the users.

Radiofrequency magnetoelastic resonators for magnetoelectric applications

Magnetoelastic resonance measurements are carried out in short ribbons (down to 1 cm length) of Fe59Co16Si15B10 metallic glasses, both as-quenched and after annealing at 400 °C for 10 min. The resonant frequency exceeds 200 kHz with good Q factors for the shortest elements in the as-quenched state. Sandwich-type laminated magnetoelectric (ME) composites are prepared by gluing these ribbons to a PVDF piezoelectric polymer layer, showing good ME response. This effect is discussed as a function of the as-quenched or annealed state, and the length of the magnetoelastic ribbon, and is of interest for near field communication applications.

Research of NFC Technology on Smartphones

To explore near field communication application(NFC) on smartphone, the paper proposed an efficient NFC system on smartphones. Based on detailed analysis of the definition of NFC, NFC history, NFC operating modes, NFC phones and NFC use case, the proposed scheme introduces the global view of NFS system, and analyzes NFC international standards and NFC Forum standards. The paper also dwells on NFC applications development technology, especially Qt NFC development technology, which includes the introduction of QtMobility NFC API, the usage of Generic NFC classes, NFC classes used in tag access, NFC classes for Peer-to-Peer communication and Connectivity QML plugin of QtMobility which provides system performance of smartphone and experience of users.