Can anyone explain within detail how does bluetooth works?
Answers: Bluetooth is a radio standard and communications protocol primarily designed for low power consumption, with a short scope (power-class-dependent: 1 meter, 10 meters, 100 meters)[1] based on low-cost transceiver microchips within each device.
Bluetooth let these devices communicate with respectively other when they are in span. The devices use a radio communications system, so they do not have to be surrounded by line of verbs of each other, and can even be surrounded by other rooms, as long as the received transmission is powerful satisfactory.
Class Maximum Permitted Power
(mW/dBm) Range
(approximate)
Class 1 100 mW (20 dBm) ~100 meters
Class 2 2.5 mW (4 dBm) ~10 meters
Class 3 1 mW (0 dBm) ~1 meter
It has to be noted that surrounded by most cases the effective extent of class 2 devices is extended if they connect to a class 1 transceiver, compared to pure class 2 network. This is competent by higher sensitivity and transmitter power of the Class 1 device. The greater transmitter power of Class 1 device allows higher power to be received by the Class 2 device. Furthermore, complex sensitivity of Class 1 device allows reception of much lower transmitted power of the Class 2 devices. Thus, allowing operation of Class 2 devices at much higher distances.
Version Data Rate
Version 1.2 1 Mbit/s
Version 2.0 + EDR 3 Mbit/s
WiMedia Alliance
(proposed) 53 - 480 Mbit/s
[edit] Bluetooth profiles
not really no....
Bluetooth is a ahort-reange Wireless standard (usually 30 ft. or less). It operate on a different band from Wireless a/b/g, and is most adjectives for connecting headsets, earpiece, keyboards and Mice with computer devices or phones.
Bluetooth and the host devices enjoy to be paired or synched, so setup is a bit involved compared with the other Wireless standards.
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