Good morningWelcome

to the

seminar

Seminar on

Bluetooth

Bluetooth

Open wireless protocol

Uses short range radio technology

Simplifies data

synchronisat-ion

Bluetooth implementation

Uses frequency hopping spread spectrum

Uses Gaussian Frequency shift keying

Developed & licensed by SIG

Bluetooth specification protocol stack

Bluetooth radio Frequency bands

Transmitter characteristics

Receiver characteristics

Baseband

error correction

Hop selection

Bluetooth security

LMPUsed by link managers

Mainly made up

of PDU’s

HCIActs as a command

interface

Communicates the host

stack with the host

controller

L2CAPProvides connection oriented & connectionless

data services

Two link types

-SCO

-ACl

RFCOMMCreates a virtual serial data stream

Acts as a transport layer

Emulation of serial ports

SDPUses a request/response model

Discovers services provided by other Bluetooth devices

AVCTPAudio/visual control transport protocol

AVDTPAudio/visual data transport protocol

TCS-BINTelephony control protocol-binary

bit oriented protocol

ADOPTED PROTOCOLS

It includes-ppp

point-to-point protocol

Tcp/ip/udp

foundation protocol

Obex

object exchange protocol

wae

wireless application environment

Wap

wireless application protocol

Bluetooth profilesDescribes implementation of user

models

Defines parameter ranges of each

protocol

Decreases the risk of

interoperability problems

View of different sections of profiles

How Bluetooth works

Modes of

operationpiconet connection between 2 or more devices

each piconet is identified by a different FHS

follows a master slave mechanism

Scatternet

connection of different piconets

Different versions of

Bluetooth

•AFH, eSCO•High

transmission speed

•EDR•Low power

consumption

• Supports non-encrypted channels

•Required mandatory BD_ADDR

Bluetooth

1.0 & 1.0B

Bluetooth

1.1

Bluetooth

1.2

Bluetooth

2.0

•Extended inquiry response

•Secure simple pairing

Bluetooth

2.1

• AMP• High speed

transport

Bluetooth

3.0

Applications of

Bluetooth

A typical Bluetooth mobile

phone headsetA Bluetooth USB dongle

MOTOROLA –PORTABLE-

BLUETOOTH car-kit-T305 Features-

• Crisp & clear

• Smooth execution

• Fashionable & multi-

faceted

• Mini USB connector

for easy charging

• A Multi-function button

Advantages of

Bluetooth

Universally accepted

economical

Simplifies communication

while driving

Best alternative of data transfer

Instant PAN (personal area network)

Standard protocol

Bluetooth v/s Wi-Fi

-->uses wireless PAN

-->simplifies discovery & setup of Services -->uses wireless LAN

-->requires configuration to setup shared resources

Bluetooth

security

As it has many benefits, also

susceptibility to denial of service

attacks—

Bluejacking

Bluesnarfing

bluebugging

To protect data--Many software patches

available for older Bluetooth

phones

Turn to non-discoverable mode

when not in use

Never pair with unknown

devices or In public places

Disadvantages of Bluetooth

Battery mileage

Bluetooth internet

Thank you for your presence

By,J.Pranaya

Sujata Patnaik