Study of Magnetic Field Coupling Technologies in Activating RFID-SIM Card Mobile Payments

In this paper, we propose a RFID (Radio-frequency Identification)-SIM card mobile payment scheme and study the magnetic field coupling technologies in activating the payments for the second generation readers. Simulation results show that the mobile payment scheme based on a low-frequency magnetic-coupling activation strategy is reasonable, secured, robust, low-cost, and easy to promote. The performance of various mobile phones integrated with the RFID-SIM cards is very similar under the proposed activation strategy. The activation distances between various mobiles and the readers are very consistent. When high-frequency magnetic coupling is used, however, the performance of different mobile phones shows great difference because of the small attenuation factor.