PRESENTATION ONPRESENTATION ON ““WI-FI (802.11b) AND BLUETOOTH:ENABLING WI-FI (802.11b) AND BLUETOOTH:ENABLING

COEXISTENCE-JIM LANSFORD, ADRIAN STEPHENS AND COEXISTENCE-JIM LANSFORD, ADRIAN STEPHENS AND RON NEVO, MOBILIAN CORPORATIONRON NEVO, MOBILIAN CORPORATION””

PRESENTATION BYPRESENTATION BY

JAGADISHJAGADISH KU KUMMAR AR GUTTIKONDAGUTTIKONDA

INTRODUCTIONINTRODUCTION

EMERGING WIRELESS TECHNOLOGIES IN ISM BANDEMERGING WIRELESS TECHNOLOGIES IN ISM BAND WPAN-WIRELESS PERSONAL AREA NETWORKINGWPAN-WIRELESS PERSONAL AREA NETWORKING WLAN-WIRELESS LOCAL AREA NETWORKINGWLAN-WIRELESS LOCAL AREA NETWORKING WPAN-LED BY BLUETOOTHWPAN-LED BY BLUETOOTH WLAN-LED BY WI-FI(IEEE-802.11b)WLAN-LED BY WI-FI(IEEE-802.11b)

PREVIOUS WORKPREVIOUS WORK

ANALYSIS OF INTERFERENCE BETWEEN 802.11b AND ANALYSIS OF INTERFERENCE BETWEEN 802.11b AND BLUETOOTHBLUETOOTH

PHY AND MAC LAYERSPHY AND MAC LAYERS

WI-FI AND BLUETOOTH INTERFERENCE WI-FI AND BLUETOOTH INTERFERENCE BASICSBASICS

WI-FI AND BLUETOOTH OVERVIEWWI-FI AND BLUETOOTH OVERVIEW WI-FI AND BLUETOOTH SHARING OF SAME FREQUENCY WI-FI AND BLUETOOTH SHARING OF SAME FREQUENCY

BANDBAND SIGNALS AND NOISESIGNALS AND NOISE

WI-FI AND BLUETOOTH OVERVIEWWI-FI AND BLUETOOTH OVERVIEW

BLUETOOTHBLUETOOTH RF TECHNOLOGYRF TECHNOLOGY PICONETSPICONETS Synchronous Connection Synchronous Connection

Oriented linksOriented links Asynchronous Connectionless Asynchronous Connectionless

data typesdata types PHY layer PHY layer Power Level and Data ratePower Level and Data rate

WI-FIWI-FI NetworkingNetworking Data TypesData Types Access SchemeAccess Scheme PHY layerPHY layer Power LevelPower Level

WI-FI AND BLUETOOTH: SHARING THE WI-FI AND BLUETOOTH: SHARING THE SAME FREQUENCY BANDSAME FREQUENCY BAND

ISM BANDISM BAND TRANSMISSION METHODSTRANSMISSION METHODS BLUETOOTH AND WI-FI TRANSMISSION METHODSBLUETOOTH AND WI-FI TRANSMISSION METHODS

SIGNALS AND NOISESIGNALS AND NOISE

SIGNAL TO NOISE RATIO SIGNAL TO NOISE RATIO (Eb/Nt)(Eb/Nt)

DEPENDENCE OF DEPENDENCE OF COMMUNICATION SYSTEM ON COMMUNICATION SYSTEM ON SNRSNR

NOISENOISE IN-BAND NOISE AND OUTBAND IN-BAND NOISE AND OUTBAND

NOISENOISE WHITE AND COLOREDWHITE AND COLORED

TYPICAL TRANSMIT MASKTYPICAL TRANSMIT MASK

BLUETOOTH AND WI-FI INTERFERENCE BLUETOOTH AND WI-FI INTERFERENCE CASESCASES

IF BLUETOOTH AND WI-FI OPERATE AT THE SAME TIME WITH IF BLUETOOTH AND WI-FI OPERATE AT THE SAME TIME WITH IN THE SAME FREQUENCY BAND THEY WILL INTERFERE IN THE SAME FREQUENCY BAND THEY WILL INTERFERE WITH EACH OTHERWITH EACH OTHER

INTERFERENCE MEASUREMENTSINTERFERENCE MEASUREMENTS

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

MEASUREMENT ENVIRONMENTMEASUREMENT ENVIRONMENT

CONFIGURATIONCONFIGURATION GANYMEDE CHARIOTGANYMEDE CHARIOT

MEASUREMENT RESULTSMEASUREMENT RESULTS

WI-FI THROUGH PUT WITH BLUETOOTH ACTIVITYWI-FI THROUGH PUT WITH BLUETOOTH ACTIVITY

INTERFERENCE SIMULATIONINTERFERENCE SIMULATION

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

SIMULATION OVERVIEWSIMULATION OVERVIEW

SIMILAR TO NIST MODEL DESCRIBED BY GOLMIESIMILAR TO NIST MODEL DESCRIBED BY GOLMIE TYPICAL SCENARIOTYPICAL SCENARIO

SCENARIO SETUP AND CALIBRATIONSCENARIO SETUP AND CALIBRATION

CALIBRATING THE SIMULATION DATA TO THE MEASURED CALIBRATING THE SIMULATION DATA TO THE MEASURED DATADATA

EMPIRICAL MODELEMPIRICAL MODEL

SIMULATION SCENARIOSSIMULATION SCENARIOS

IMPACT OF VARIOUS KEY PARAMETERSIMPACT OF VARIOUS KEY PARAMETERS BLUETOOTH AND WI-FI ACTIVITYBLUETOOTH AND WI-FI ACTIVITY

SIMULATION RESULTSSIMULATION RESULTS

THE IMPACT OF SCO LINKSTHE IMPACT OF SCO LINKS ADDITIONAL PICONETS ADDITIONAL PICONETS

(OFFICE SCENARIO)(OFFICE SCENARIO) THE EFFECT OF WI-FI ON THE EFFECT OF WI-FI ON

BLUETOOTH BLUETOOTH

SIMULATION RESULTSSIMULATION RESULTS

INTERFERENCE REDUCTION INTERFERENCE REDUCTION TECHNIQUESTECHNIQUES

COEXISTENCE PROBLEMCOEXISTENCE PROBLEM TECHNIQUESTECHNIQUES REGULATORY AND STANDARDSREGULATORY AND STANDARDS USAGE AND PRACTICESUSAGE AND PRACTICES TECHNICAL APPROACHESTECHNICAL APPROACHES ALTERNATE FREQUENCY BANDSALTERNATE FREQUENCY BANDS

CONCLUSION(S)CONCLUSION(S)

COEXISTENCE AND SIMULATANEOUS OPERATION OF WI-FI COEXISTENCE AND SIMULATANEOUS OPERATION OF WI-FI AND BLUETOOTH.AND BLUETOOTH.

REDUCTION OF INTERFERENCE USING SYSTEM LEVEL REDUCTION OF INTERFERENCE USING SYSTEM LEVEL APPROACHAPPROACH

EFFECTIVE SOLUTIONS BY IEEE 802.15.2 AND BLUETOOTH EFFECTIVE SOLUTIONS BY IEEE 802.15.2 AND BLUETOOTH SIG AND THEIR MARKET DEPLOYABILITY.SIG AND THEIR MARKET DEPLOYABILITY.

REFERENCESREFERENCES

WWW.MOBILIAN.COMWWW.MOBILIAN.COM WWW.TI.COMWWW.TI.COM WWW.ETSI.ORGWWW.ETSI.ORG

THANK YOUTHANK YOU