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Near Field Communication (NFC)




Near Field Communication (NFC)


       NFC or Near Field Communication is a short range high frequency wireless communication technology.A radio communication is established by touching the two phones or keeping them in a proximity of a few centimeters. NFC is mainly aimed for mobile or handheld devices. NFC is an extension of Radio frequency identification. It is a form of contactless communication between devices.

EVOLUTION OF NFC TECHNOLOGY

     In 2004, NFC Forum was formed by Nokia, Philips, Sony to set standards for NFC . Every NFC enabled device will have an “N-Mark” trademark ,developed by NFC Forum.In 2006, first mobile phone( nokia 6131) with NFC was released by NOKIA.In 2010, first android phone SAMSUNG NEXUS S with NFC support was released.Sony introduced "Smart Tags", which use NFC technology to change modes and profiles on sony smartphones.
OPERATION OF NFC



     Near field communication is based on inductive-coupling.NFC works using magnetic induction between two loop antennas.A reader emits a small electric current, which creates a magnetic field that in turn bridges the physical space between the devices. That field is received by a similar coil in the client device, where it is turned back into electrical impulses to communicate data such as identification number, status information, or any other information.So, NFC use an initiator and a target; the initiator actively generates an RF field that can power a passive target, while 'active' or 'peer-to-peer' tags have their own power source and respond to the reader using their own electromagnetic fields.
     NFC technology is a key element of next-generation mobile access control solutions that, combined with a new access control platform and identity data model, will significantly improve the overall system security of a business whilst creating a more flexible access control system infrastructure. In the short-term, despite these tangible benefits of flexibility and user convenience, without widespread industry adoption, NFC-enabled mobile access control is unlikely to completely replace keys and cards in the coming years.

      Instead, mobile access credentials embedded in NFC-enabled smartphones will co-exist with cards and badges, so that organisations can implement a choice of smart cards, mobile devices or both within their physical access control system (PACS). Many organisations may still require their employees to carry traditional physical access control smart cards because they are used as a means of photo identification. It will therefore be important for users to plan ahead to support both types of credentials for their physical access control solutions.

    Mobile handsets are the primary target for NFC and soon NFC will be implemented in most handheld devices.The advancements in mobile wireless technology and communication standards have enabled usage of contactless and NFC based payment models.

  • The mobile wallet based payment model is gaining considerable momentum and is currently being seen as one of the key payment model, to promote contactless payment processing practices.
  • The mobile wallet technology enables the end-users to make payments with their mobile wallet accounts, without having to use credit or debit cards and hence this technology can also help users that do not use credit or debit cards.

Benefits of NFC
  • Versatile: NFC is ideally suited to the broadest range of industries, environments, and uses
  • Open and standards-based: The underlying layers of NFC technology follow universally implemented ISO, ECMA, and ETSI standards
  • Technology-enabling: NFC facilitates fast and simple setup of wireless technologies, (such as Bluetooth, Wi-Fi, etc.)
  • Inherently secure: NFC transmissions are secure due to short range communication
  • Interoperable: NFC works with existing Contactless card technologies
  • Security-ready: NFC has built-in capabilities to support secure applications

    Application of NFC


















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