Bluetooth, Infrared


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This presentation contain the details of Bluetooth and Infred technology.

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  • The Bluetooth core system covers the four lowest layers and associated protocols defined by the Bluetooth specification as well as one common service layer protocol, the Service Discovery Protocol (SDP) and the overall profile requirements are specified in the Generic Access Profile (GAP). A complete Bluetooth application requires a number of additional service and higher layer Protocols. The lowest three layers are sometimes grouped into a subsystem known as the Bluetooth controller. This is a common implementation involving a standard physical communications interface between the Bluetooth controller and remainder of the Bluetooth system including the L2CAP, service and higher layers (known as the Bluetooth host.) Although this interface is optional the architecture is designed to allow for its existence and characteristics The Bluetooth core system protocols are the Radio (RF) protocol, Link Control (LC) protocol, Link Manager (LM) protocol and Logical Link Control and Adaptation protocol (L2CAP), all of which are fully defined in subsequent parts of the Bluetooth specification. In addition the Service Discovery Protocol (SDP) is a service layer protocol required by all Bluetooth applications.
  • Bluetooth, Infrared

    1. 1. & Infrared Technology Presented By: Nitin Rana - 58 Pranav Priyadarshi-67 Prashant Kumar -68 Prashant Priyam -70 Priyank Suman -71 Priyanka Kumari -72
    2. 2. <ul><li>Name taken from the 10 th century King Herald Bluetooth </li></ul><ul><li>King Bluetooth attached all Scandinavian people when they were torn apart due to wars and feuding lans. </li></ul>
    3. 3. <ul><li>Bluetooth was first developed in Scandinvia </li></ul><ul><li>It is also able to unite differing industries </li></ul><ul><li>E.g. cell phone, computer, automotive markets </li></ul>
    4. 4. <ul><li>It was officially introduced in 1998 </li></ul><ul><li>Basic purpose was to be a wire replacement technology </li></ul>
    5. 5. <ul><li>In 2003 the bluetooth 2.1 intorduced </li></ul><ul><li>In 2004 bluetooth 2.0+EDR introduced </li></ul><ul><li>Devices using BT+EDR entered in 2005 </li></ul>
    6. 6. <ul><li>Bluetooth uses wireless protocol for the devices </li></ul><ul><li>It forces devices to agree on </li></ul><ul><ul><li>When bits are sent </li></ul></ul><ul><ul><li>How many will be sent at a time </li></ul></ul><ul><ul><li>How devices can sure message received </li></ul></ul>
    7. 7. <ul><li>It is short range wireless ,secure and international std. technology </li></ul><ul><li>It provides communication between bluetooth enabled device. </li></ul><ul><li>It uses radio waves that operates @2.4GHz </li></ul>
    8. 8. <ul><li>The master bluetooth device can communicate with seven other bluetooth enabled device. </li></ul><ul><li>Bluetooth 3.0 provides high speed connections </li></ul><ul><li>It also supports VOIP technology </li></ul>
    9. 9. <ul><li>Typical bluetooth device consist of RS trenceiver, protocol stack and baseband </li></ul><ul><li>It was able to connect computer with printer and other nodes </li></ul>
    10. 10. <ul><li>Bluetooth provides speed of 1-2 Mbps </li></ul><ul><li>It can be used internally as well as externally </li></ul><ul><li>Bluetooth enabled devices can change their frequency rapidly so they can be saved from external interference </li></ul>
    11. 11. <ul><li>For security it uses pin code and 128 encryption </li></ul><ul><li>It uses AFH facility to control interference </li></ul><ul><li>AFH works within the spectrum to take advantage of the available frequency </li></ul>
    12. 12. <ul><li>Range of Bluetooth </li></ul><ul><li>Class 3 radios – have a range of up to 1 meter or 3 feet </li></ul><ul><li>Class 2 radios – most commonly found in mobile devices – have a range of 10 meters or 33 feet </li></ul><ul><li>Class 1 radios – used primarily in industrial use cases – have a range of 100 meters or 300 feet </li></ul>
    13. 13. <ul><li>Bluetooth  technology operates in the unlicensed industrial, scientific and medical (ISM) band at 2.4 to 2.485 GHz, using a spread spectrum, frequency hopping, full-duplex signal at a nominal rate of 1600 hops/sec </li></ul>
    14. 14. Logical Link Control and Adaptation protocol (L2CAP) Link Manager (LM) protocol Host to Controller Interface (HCI)
    15. 15. <ul><li>Advantage </li></ul><ul><li>It is wireless technology </li></ul><ul><li>It is safe and convenient </li></ul><ul><li>Made networking portable </li></ul><ul><li>It makes life easier </li></ul>
    16. 16. <ul><li>DISADVANTAGE </li></ul><ul><li>Battery use </li></ul><ul><li>Bluetooth Internet speed is slow </li></ul>
    17. 18. <ul><li>Infrared technology </li></ul><ul><li>It was established in 1993 </li></ul><ul><li>Purpose was to provide wireless connectivity </li></ul><ul><li>It allows point to point user access model </li></ul><ul><li>Frequency id THz </li></ul><ul><li>Communication is possible due to tansceiver </li></ul>
    18. 19. <ul><li>IR can be used over longer interconnections and has an applicability to local area networks (LANs) </li></ul><ul><li>Maximum distance is 1mile </li></ul><ul><li>Maximum bandwidth is 16 Mbps </li></ul><ul><li>It is secure networking application </li></ul><ul><li>In future it will be implemented in BANK,ATM, Credit Cards etc. </li></ul>
    19. 20. <ul><li>It is more reliable </li></ul><ul><li>Some manufacturer provides IrDA port that allows wireless keyboard to communicate with PC </li></ul><ul><li>Infrared signals defined by IrDA transmit through line of sight </li></ul><ul><li>Standard originally data transmission rate is 75Kbps for a distance up to 8 meter </li></ul><ul><li>Now it is 4Mbps. </li></ul>