Slide 1TopicsTopics (cont.)(IrDA) Infrared Data AssociationBasics of InfraredInfrared and CommunicationIr ApplicationTransmitting Data Between Two Different Electronic DevicesAdvantages and Disadvantages of InfraredBluetoothBasics of BluetoothBasic Structure of Bluetooth Architecture [5]Challenges with Bluetooth CommunicationBluetooth ApplicationsAdvantage and Disadvantages of BluetoothCompanies Supporting IrDA or BluetoothReferencesWavelength SpectrumInfrared in the Night1Infrared Data Association and Bluetooth TechnologyEE566 presentationBehanzin ReidEmail [email protected](IrDA) Infrared Data AssociationBasics of InfraredInfrared and CommunicationIrDA ApplicationTransmitting Data Between Two Different Electronic DevicesAdvantages and Disadvantages of IrDA3Topics (cont.)BluetoothBasic of BluetoothBasic Structure of Bluetooth ArchitectureChallenges with Bluetooth CommunicationBluetooth ApplicationsAdvantage and Disadvantages of BluetoothCompanies Supporting IrDA or BluetoothOther Types of wireless CommunicationsConclusionReferences4(IrDA) Infrared Data AssociationInfrared Data AssociationNon-profit OrganizationIrDA’s StrategyIrDA Members5Basics of InfraredInfrared WavelengthInfrared in the Environment Figure 1. Wavelength Spectrum6Infrared and CommunicationFirst IrDA•Specify a standard and a protocols for data transmissionIrDA devices communicate using infrared LED’sWavelength 875nm +-30nmIrDA support data transmission of 1.15Mb/s and 4Mb/s7Ir ApplicationPDAsPhonesOrganizerPrintersCamerasLaptops and NotebooksOther Applications8Transmitting Data Between Two Different Electronic DevicesCan you transmit data between two Infrared capable devices even though they are manufacture by different companies?Example •Between a Kyocera Smart-phone and Dell Axim•Between a Kyocera Smart-phone and a Dell Latitude9Advantages and Disadvantages of InfraredAdvantages•Point-to-point•Line of sight•Transfer data up to 1m•Security•Low power consumption•Low costDisadvantages•Line of sight•One device at a time•Transfer rate 4Mbps•Have to keep the device stable when transferring data10BluetoothThe Bluetooth special interest Group founded by Ericsson, IBM, Intel, Nokia, and Toshiba in 1998. It was created to develop an open specification for short-range wireless connectivity between laptops, computers, cellular telephones and other electronic devices.11Basics of BluetoothShort range Radio Frequency at 2.4 GHzPoint-to-point or point-to-multiple pointsVoice and DataTransmit through walls up to 10mSupports both synchronous and asynchronous services12Basic Structure of Bluetooth Architecture [5]Radio Baseband/link controllerLink manager Application-level software13Challenges with Bluetooth CommunicationMany devices already uses the 2.5GHz radio frequency bandSend a weak signal of 1mW so that signals can travel a distance of 10mSpread-Spectrum Frequency Hopping Avoiding Interference14Bluetooth ApplicationsWireless Head SetsCell PhonesLaptops and NotebooksPDA’sPrintersWireless communication (WAN)15Advantage and Disadvantages of BluetoothAdvantagesNo line of SightLower power consumption2.5 GHz radio frequency ensures worldwide operationVery adaptiveDisadvantageNew type of technologySharing the same frequency rang.16Companies Supporting IrDA or BluetoothIrDA [6] Bluetooth[2]17References[1] Images of Infrared http://coolcosmos.ipac.caltech.edu/cosmic_kids/[2] Description of Bluetooth http://www.howstuffworks.com[3] List of companies that are part of Bluetooth http://www.bluetooth.com [4] Marcus Nilsson, Josef Hallberg “positioning with Bluetooth, IrDA and FRID”[5] Jay Velasquez “wireless personal Area Network: A comparative Look at IrDA-Data and Bluetooth April 26, 2000[ 6] List of IrDA Members http://www.irda.org/members/members.asp18Wavelength SpectrumFigure 1. Wavelength Spectrum19Infrared in the NightFigure [x] Images of Infrared object in the night