Nfc Near Field Communication

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Table of Contents
2.What is NFC?4
3.NFC Passive tag:5
4.Applications of NFC:8
5.NFC comparison with other technologies:10
6.Challenges of NFC:11

Near field communication, is the fresh buzz in the ever-hot mobile market, A brief over view about this latest technology, the segment of industry that NFC is going to serve and NFC’s working will be overviewed in this paper. A brief over view of preceding technologies, the advantages of NFC that made it possible to compete and sustain its technology advantage, will be discussed in the report. The industry specifications and standardizations used in development of NFC are briefed in this paper. NFC technology history trace backs its roots to RFID (radio frequency identification). RFID allows sending radio waves to create communication link. 1983 – first patent associated with RFID was granted

1995 – patent regarding wallet paying electronically is described in brazil with IPN 9500345. 2004 – NFC forum was established by Nokia, Sony, Phillips
2006 – first NFC tag specification, first smart poster were released into market. 2006 – first NFC enabled phone into consumer product, Nokia 6131. 2009 – peer to peer communication standards to initiate Bluetooth, access URL 2010 – Samsung, Google launched Nexus S first Android-based Smartphone with NFC feature. NFC has got its success with the technology being implemented in the smart phones particularly in android phones giving this technology access to lot of users. Another reason being it accepted by VISA and Master Card for developing a system to give wireless smart card transfer functionality by joining NFC forum. 2.What is NFC?

Near Field communication is a subset of all ready existing, success full technology RFID (Radio Frequency Identification). It allows creating a short-range wireless connectivity, that enables two ways safe and protected communication channel between devices. The name NFC is justified by two-way communication channel between communicating entities with a short range of nearly 10cm, providing privacy and security.

NFC implemented using two entities of communication, Receiver and transmitter. In NFC communications entities are divided either as active devices or passive devices. Active devices are those, which have power supply. Passive devices unlike active do not have any power source, they feed upon active devices to generate field of communication, in this scenario passive device's act as transponder. NFC is primarily implemented based on applications, which can be done by mobile phone, as implementing NFC on mobile device give flexibility to use potential of this technology.

NFC applications are basically marked three types:
* Card emulation: The major characteristic of this functionality is to give smart card capability to the mobile device. Mobile device with NFC feature when bought near a NFC reader acts as a smart card. Here we enable NFC device to send data to receiver for further processing such as credit card number for processing transaction. This particular feature is used for bank transactions, ticketing system, mobile payments, public transport ticketing system and contactless payments. * Peer - Peer Connection: This functionality allows two NFC enabled devices to communicate each other by exchanging data. Modern example of this is, business card exchange with two smart phones enabled with NFC. NFC is used to control the authentication of establishing blue tooth connection between devices. In this way, devices share data among each other with Bluetooth technology, which has higher data rate and long range but use NFC for authentication. * Read write mode: In this functionality NFC devices are capable of reading data from Tags, such as posters or near transit station regarding the commute details, etc. In this we can also use write data into NFC tags that others can read, using NFC readers....
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