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PROF. MAULIK PATELCED, GPERI

Mobile Computing

Gujarat Power Engineering and Research Institute

Prepared By: Prof. Maulik Patel

Mobile Technologies

Prepared By: Prof. Maulik Patel

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BluetoothRadio frequency identification(Rfid)Wireless Broadband, etc.

Prepared By: Prof. Maulik Patel

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It is small microchip & operate in a gobally available frequency band.

Use unlicensed 2.4GHz ISM freq. Band.79 available Bluetooth channels spaced 1

MHz apart from 2.402 to 2.480 GHz.IEEE adapted bluetooth as the 802.15.1a

standard.Power level: 1mW covering 10cm, 100mW

covering 100 meters.

Bluetooth

Prepared By: Prof. Maulik Patel

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Bluetooth protocol uses the concept of master and slave.

Device need to wait till the time the master allows them to talk.

The master and slaves together form a piconet.

Up to Seven slave device can be set to communicate with master.

N/w of piconet is called scatternet.Scatternet formed when device from one

piconet also act as a member of another.

Bluetooth

Prepared By: Prof. Maulik Patel

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Bluetooth

Prepared By: Prof. Maulik Patel

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Divided into four basic layer: Bluetooth Core protocols

Baseband Link manager Protocol Logical link control & adaptation protocol Service Discovery Protocol

Cable Replacement Protocol Telephony Control Protocol

Telephony control protocol AT-commands

Adopted Protocols. PPP TCP/IP OBEX Protocol Content Formats

Bluetooth Protocol stack.

Prepared By: Prof. Maulik Patel

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Prepared By: Prof. Maulik Patel

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Bluetooth Security