WIRELESS CONNECTIONS IrDA Bluetooth WAP - GPRS

IrDA  I nfrared D ata A ssociation founded 1993

What is IrDA? I nfrared D ata A ssociation low cost low power half dublex support  walk up  point to point

IrDA Executive Summary IrDA standarts suppot a board range of computing communications consumer devices

IrDA’s Role IrDA is playing an important role in wireless data communication...  laptop computers  PDAs  digital cameras  mobile phones

IrDA’s Possibilaties  sending a documentation  exchanging business cards  coordinating schedules and telephone books  sending faxes

IrDA’s Modules  (SIR) Kbps  (FIR) FAst Infrared Standart 4Mbit/sn  (VFIR) Very Fast Infrared Standart 16Mbit/sn

IrDA Stack The IrDA protocol consist manily of three diffrent layers:

Physical Layer  first layer from bottom up in hierarchical stack  deals directly with bit encoding error checking and correction transmiting and receiving data

Link Access Protocol (IrLAP)  second layer on hierarchical stack  uses services provided by physical layer  defines services provided by the protocol  sets vocabulary, encoding and procedures rules

Link Management Protocol (IrLMP)  support walk-up and point to point connection between IrDA devices  provides and supports for multiple software applications  allows entities to operate independently

IrDA and Future Works  support higher baud rates for faster transmissions  apply low-power features

IrDA’s Advantages  prevalence

IrDA’s Disadvantages  short range  high risk of defect  not to talk

Bluetooth It’s that Simple Bluetooth wireless technology makes your world wireless and gives you the freedom explore.

Bluetooth

Why is the technology called bluetooh?  Danish king Herald “Bluetooth” Blaatand who unified Danmark and Norway.  Founded 1994 by Ericsson

Bluetooth  high levels of security  robustness  low power  low cost

Bluetooth can provide consumers  make calls  eliminate cables  set up home networks  call home from a remote location

How is Bluetooth used?  bluetooth can be used a wirelessly  cable replecement technology  automatically synchronizing  access a network

Bluetooth

Bluetooth Technology Benefits  globally available  range of devices  ease of use  globally accepted specification  secure connection

Devices That Use Bluetooth  Digital cameras  Printers  Scanners  Cell phones  Laptops  Keyboard and mice  İn – car handsfree kits

Piconet and Scarnet

How Bluetooth Technology Works? Access Code

How Bluetooth Technology Works? Header

How Bluetooth Technology Works? Payload

Bluetooth Encryption

Bluetooth Data Transfer in Mobile Phone

Bluetooth Data Transfer in Computer

WAP - GPRS  Wireless Application Protocol  General Packet Radio Services

GPRS

What is GPRS?  The General Packet Radio Service (GPRS)  sending and receiving data over an Internet Protocol

How GPRS is work?  bit-stream over  a dedicated dial-up connection.

GPRS Features  internet on the mobile phone  rich media application  speed

GPRS Service and Hardware  MMS  Push to Talk  Wireless Village  WAP  Point to Point  Short Mesage Service

WAP  Wireless Application Protocol

WAP  WAP supports: by mobile phone Sports result News headlines Music downlands

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YUNUS EMRE ÖNDER Bilkent University Computer Technology & Programming Tolga Baycan