Near Field Communication

http://en.wikipedia.org/wiki/Near_Field_Communication

근거리 무선 통신(Near Field Communication, NFC)는 13.56MHz의 대역을 가지며, 아주 가까운 거리의 무선 통신을 하기 위한 기술이다. 현재 지원되는 데이터 통신 속도는 초당 424 킬로비트다. 교통, 티켓, 지불 등 여러 서비스에서 사용할 수 있다.

Near Field Communication or NFC, is a short-range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimeter (around 4 inches) distance.^[1] The technology is a simple extension of the ISO/IEC 14443 proximity-card standard (proximity card, RFID) that combines the interface of a smartcard and a reader into a single device. An NFC device can communicate with both existing ISO/IEC 14443 smartcards and readers, as well as with other NFC devices, and is thereby compatible with existing contactless infrastructure already in use for public transportation and payment. NFC is primarily aimed at usage in mobile phones.

NFC	Bluetooth	Bluetooth Low Energy
RFID compatible	ISO 18000-3	active	active
Standardisation body	ISO/IEC	Bluetooth SIG	Bluetooth SIG
Network Standard	ISO 13157 etc.	IEEE 802.15.1	IEEE 802.15.1
Network Type	Point-to-point	WPAN	WPAN
Cryptography	not with RFID	available	available
Range	< 0.2 m	~10 m (class 2)	~1 m (class 3)
Frequency	13.56 MHz	2.4-2.5 GHz	2.4-2.5 GHz
Bit rate	424 kbit/s	2.1 Mbit/s	~1.0 Mbit/s
Set-up time	< 0.1 s	< 6 s	< 1 s
Power consumption	< 15mA (read)	varies with class	< 15 mA (xmit)