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PRESENTATION BY JAGADISH KU M AR GUTTIKONDA

PRESENTATION ON “ WI-FI (802.11b) AND BLUETOOTH:ENABLING COEXISTENCE-JIM LANSFORD, ADRIAN STEPHENS AND RON NEVO, MOBILIAN CORPORATION ”. PRESENTATION BY JAGADISH KU M AR GUTTIKONDA. INTRODUCTION. EMERGING WIRELESS TECHNOLOGIES IN ISM BAND WPAN-WIRELESS PERSONAL AREA NETWORKING

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PRESENTATION BY JAGADISH KU M AR GUTTIKONDA

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  1. PRESENTATION ON“WI-FI (802.11b) AND BLUETOOTH:ENABLING COEXISTENCE-JIM LANSFORD, ADRIAN STEPHENS AND RON NEVO, MOBILIAN CORPORATION” PRESENTATION BY JAGADISH KUMAR GUTTIKONDA

  2. INTRODUCTION • EMERGING WIRELESS TECHNOLOGIES IN ISM BAND • WPAN-WIRELESS PERSONAL AREA NETWORKING • WLAN-WIRELESS LOCAL AREA NETWORKING • WPAN-LED BY BLUETOOTH • WLAN-LED BY WI-FI(IEEE-802.11b)

  3. PREVIOUS WORK • ANALYSIS OF INTERFERENCE BETWEEN 802.11b AND BLUETOOTH • PHY AND MAC LAYERS

  4. WI-FI AND BLUETOOTH INTERFERENCE BASICS • WI-FI AND BLUETOOTH OVERVIEW • WI-FI AND BLUETOOTH SHARING OF SAME FREQUENCY BAND • SIGNALS AND NOISE

  5. BLUETOOTH RF TECHNOLOGY PICONETS Synchronous Connection Oriented links Asynchronous Connectionless data types PHY layer Power Level and Data rate WI-FI Networking Data Types Access Scheme PHY layer Power Level WI-FI AND BLUETOOTH OVERVIEW

  6. WI-FI AND BLUETOOTH: SHARING THE SAME FREQUENCY BAND • ISM BAND • TRANSMISSION METHODS • BLUETOOTH AND WI-FI TRANSMISSION METHODS

  7. SIGNALS AND NOISE • SIGNAL TO NOISE RATIO (Eb/Nt) • DEPENDENCE OF COMMUNICATION SYSTEM ON SNR • NOISE • IN-BAND NOISE AND OUTBAND NOISE • WHITE AND COLORED

  8. TYPICAL TRANSMIT MASK

  9. BLUETOOTH AND WI-FI INTERFERENCE CASES • IF BLUETOOTH AND WI-FI OPERATE AT THE SAME TIME WITH IN THE SAME FREQUENCY BAND THEY WILL INTERFERE WITH EACH OTHER

  10. INTERFERENCE MEASUREMENTS • SIMPLE MEASUREMENTS THAT DEMONSTRATE THE POTENTIAL MAGNITUDE OF THE INTERFERENCE ISSUE IN A USAGE SCENARIO CONSISTENT WITH Sim-OP.

  11. MEASUREMENT ENVIRONMENT • CONFIGURATION • GANYMEDE CHARIOT

  12. MEASUREMENT RESULTS • WI-FI THROUGH PUT WITH BLUETOOTH ACTIVITY

  13. INTERFERENCE SIMULATION • SIMULATION ENVIRONMENT CREATED USING KNOWLEDGE OF THE CHARACTERISTICS OF BLUETOOTH AND WI-FI

  14. SIMULATION OVERVIEW • SIMILAR TO NIST MODEL DESCRIBED BY GOLMIE • TYPICAL SCENARIO

  15. SCENARIO SETUP AND CALIBRATION • CALIBRATING THE SIMULATION DATA TO THE MEASURED DATA • EMPIRICAL MODEL

  16. SIMULATION SCENARIOS • IMPACT OF VARIOUS KEY PARAMETERS • BLUETOOTH AND WI-FI ACTIVITY

  17. SIMULATION RESULTS • THE IMPACT OF SCO LINKS • ADDITIONAL PICONETS (OFFICE SCENARIO) • THE EFFECT OF WI-FI ON BLUETOOTH

  18. SIMULATION RESULTS

  19. INTERFERENCE REDUCTION TECHNIQUES • COEXISTENCE PROBLEM • TECHNIQUES • REGULATORY AND STANDARDS • USAGE AND PRACTICES • TECHNICAL APPROACHES • ALTERNATE FREQUENCY BANDS

  20. CONCLUSION(S) • COEXISTENCE AND SIMULATANEOUS OPERATION OF WI-FI AND BLUETOOTH. • REDUCTION OF INTERFERENCE USING SYSTEM LEVEL APPROACH • EFFECTIVE SOLUTIONS BY IEEE 802.15.2 AND BLUETOOTH SIG AND THEIR MARKET DEPLOYABILITY.

  21. WWW.MOBILIAN.COM WWW.TI.COM WWW.ETSI.ORG THANK YOU REFERENCES

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