Faster Data Transfer With Bluetooth and Contactless Communication

NFC is a radio-communication standard that enables wireless data transfer between two devices at a very short distance -- less than 10 centimeters. NFC devices include a certain class of radio-frequency identification (RFID) tags and contactless smart cards. NFC devices operate within the 13.56 MHz frequency range, and they support extremely low data rates -- a maximum of 0.42 Mb per second.

Compared to Bluetooth and Wi-Fi, NFC technology operates at drastically reduced transfer rates and only within a very small proximity. If that's the case, why use NFC technology? Three reasons:

  • Setup time. NFC devices communicate instantly -- in less than 100 milliseconds -- when placed within range.
  • Power consumption. NFC tags and cards do not consume power, so their lifespan can be unlimited.
  • Cost. NFC tags and cards are inexpensive to manufacture compared to other wireless technologies.

This article shows you how to get Bluetooth applications to completely bypass the device-discovery and service-searching processes simply by using Near-Field Communication (NFC) technology and JSR 257: Contactless Communication API.

Read the full article
Comments:

Is this really possible?
If yes, then how?

Posted by praveen baid on July 27, 2009 at 11:27 PM PDT #

Praveen,

To make data transfers "faster" you need to do one of two things:

1. Increase the throughput of the network connection. In other words, instead of sending the data at 3Mb/s, send it at 5Mb/s.

2. Decrease the latency between connections.

Since it's really hard to increase the throughput of Bluetooth devices, this article shows you who do SIGNIFICANTLY decrease the latency. Be sure to read the full article to get the details.

Posted by Bruce Hopkins on July 28, 2009 at 01:59 AM PDT #

its very useful

Posted by rajesh on July 31, 2009 at 10:54 AM PDT #

is it possible?
please tell me how i can do this?

Posted by RAJNISH GUPTA on September 19, 2009 at 05:53 AM PDT #

Ranjish,

Please be sure to click on the link named, "Read the full article".

Thanks,

Bruce

Posted by Bruce Hopkins on September 21, 2009 at 11:40 PM PDT #

It is a very interesting post, increasing the rate of data transfer with bluetooth is something very new to me. Near-Field Communication (NFC) technology and JSR 257 is used for attaining greater data transfer rates, a very good thought indeed. Thank you for sharing such useful information. Keep up the good work.

Posted by keyboard on November 12, 2009 at 06:41 PM PST #

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Tips for developers who use Java technologies (Java SE, Java ME, JavaFX) for mobile and embedded devices.

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