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

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Presentation transcript:

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

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 b)

PREVIOUS WORK  ANALYSIS OF INTERFERENCE BETWEEN b AND BLUETOOTH  PHY AND MAC LAYERS

WI-FI AND BLUETOOTH INTERFERENCE BASICS  WI-FI AND BLUETOOTH OVERVIEW  WI-FI AND BLUETOOTH SHARING OF SAME FREQUENCY BAND  SIGNALS AND NOISE

WI-FI AND BLUETOOTH OVERVIEW  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: SHARING THE SAME FREQUENCY BAND  ISM BAND  TRANSMISSION METHODS  BLUETOOTH AND WI-FI TRANSMISSION METHODS

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

TYPICAL TRANSMIT MASK

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

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

MEASUREMENT ENVIRONMENT  CONFIGURATION  GANYMEDE CHARIOT

MEASUREMENT RESULTS  WI-FI THROUGH PUT WITH BLUETOOTH ACTIVITY

INTERFERENCE SIMULATION  SIMULATION ENVIRONMENT CREATED USING KNOWLEDGE OF THE CHARACTERISTICS OF BLUETOOTH AND WI-FI

SIMULATION OVERVIEW  SIMILAR TO NIST MODEL DESCRIBED BY GOLMIE  TYPICAL SCENARIO

SCENARIO SETUP AND CALIBRATION  CALIBRATING THE SIMULATION DATA TO THE MEASURED DATA  EMPIRICAL MODEL

SIMULATION SCENARIOS  IMPACT OF VARIOUS KEY PARAMETERS  BLUETOOTH AND WI-FI ACTIVITY

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

SIMULATION RESULTS

INTERFERENCE REDUCTION TECHNIQUES  COEXISTENCE PROBLEM  TECHNIQUES  REGULATORY AND STANDARDS  USAGE AND PRACTICES  TECHNICAL APPROACHES  ALTERNATE FREQUENCY BANDS

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

REFERENCES     THANK YOU