Near Field Communication Research Report

2909 Words Jan 28th, 2013 12 Pages
Near Field Communication

Researcher Name: Pasan Abeywickrama

Date: 18.01.2013

Table of Contents 1. Introduction 3 2. Mechanism 4 2.1 Industry Standards and Compatibility 4 2.2 Types of Communication Modes: 4 2.3 Modulation 5 2.3.1 Manchester Code 6 2.3.2 Modified Miller Code 6 2.4 Coupling 6 3. Advantages and Disadvantages 7 3.1 Advantages 7 3.2 Disadvantages 7 4. NFC compare with other Technologies (Bluetooth and Infrared) 7 5. Security Perspective 7 5.1 Data Destruction 8 5.2 Data Modification 8 5.3 Man-in-the-Middle 8 5.4 Eavesdropping 8 5.5 Data Insertion 8 5.6 NFC secure channel 8 6. Projects implemented using NFC 9 6.1 LAUGFS unveils NFC enabled fuel card powered by Dialog 9 6.2 San Francisco Launches NFC
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2.1 Industry Standards and Compatibility
NFC technology is described by NFCIP-1 (Near Field Communication Interface and Protocol 1), is standardized in ISO 18092, ECMA 340 as well as in ETSI TS 102 190, while reader/writer mode must support the RF requirements for ISO/IEC 14443A, ISO/IEC 14443 B and FeliCa. These standards specify the transport protocol, transfer speeds, bit encoding schemes, the frame architecture, and the modulation. Furthermore, the active and passive NFC modes are described and the conditions that are required to prevent collisions during initialization (ECMA International, 2004). Today’s NFC devices allows for selecting one of three operating modes such as: * NFC data transfer (NFCIP-1) * Vicinity coupling device (VCD), defined in ISO 15693 * Proximity coupling device (PCD), defined in ISO 14443
All NFC devices have to provide these three functions in order to be compatible with the main international standards to connect with the millions of contactless smartcards and scanners worldwide.
2.2 Types of Communication Modes:
NFC can operate in two different modes; it is an active and passive. An active device generates its own radio frequency (RF) field, where as a device in passive mode has to use inductive coupling to transmit data. Mobile phone such as battery powered devices act as in passive mode. In contrast to the active