dedicated short range communications (dsrc) at 5.9 ghz - ITS ...

DEDICATED SHORT RANGECOMMUNICATIONS(DSRC) AT 5.9 GHZLee ArmstrongArmstrong Consulting, Inc1

Role of DSRC in ITS ArchitectureTRAVELERSREMOTETRAVELERSUPPORTTRAFFICMANAGEMENTEMERGENCYMANAGEMENTCENTERSTOLLADMINISTRATIONCOMMERCIALVEHICLEADMINISTRATIONMAINTENANCE &CONSTRUCTIONMANAGEMENTPERSONALINFORMATIONACCESSINFORMATIONSERVICEPROVIDEREMISSIONSMANAGEMENTTRANSITMANAGEMENTFLEET &FREIGHTMANAGEMENTARCHIV ED EDDATAMANAGEMENTWIDE AREA WIRELESS (MOBILE)COMMUNICATIONSWIRELINE (FIXED-POINT TO FIXED-POINT COMMUNICATIONSVEHICLEVEHICLE TO VEHICLECOMMUNICATIONSTRANSITVEHICLEMAINTENANCE &CONSTRUCTIONVEHICLECOMMERCIALVEHICLEEMERGENCYVEHICLEVEHICLESDEDICATED SHORT RANGECOMMUNICATIONSROADWAYTOLLCOLLECTIONPARKINGMANAGEMENTROADSIDECOMMERCIALVEHICLECHECK2

New Spectrum Allocation• 75 MHz band has been allocated by FCC at 5.9 GHz• No auction, no fees• Band allows both safety and commercial applications to coexist• Band is available now• Site licenses for roadside units, license by rule for on-board units3

Don’t Confuse With Existing DSRC915 MHz• Range < 30 meters• Data rate = 0.5 mbps• Designed for ETC, but can beused for other applications• Single unlicensed channel• Requires special (custom) chipset & software• Vehicle to roadside• Command-response• Expensive roadside units5.9 GHz• Range to 1000 meters• Data rate 6 to 27 mbps• Designed for general internetaccess, can be used for ETC• 7 licensed channels• Uses open off-the-shelf chip set &software• Vehicle to roadside & vehicle tovehicle• Command-response & peer to peer• Cheap roadside units4

Performance Envelope54~~33Data Rate (Mbps)3027242118Data Transfer andInternet AccessServices5850 - 5925 MHz BandPerformance Envelope(Approximate)129Safety Message ServicesEmergency VehicleServices630Toll and Payment Services902 - 928 MHz Band Performance Envelope2004006008001000120014001600180020002200240026002800300032003400536000.5 MbpsRange (ft)

Flexible ArchitectureSupport for “classical”DSRC applicationsSupport for anyInternet applicationSupport for distributedequipment on thevehicle or roadsideOBURemoteEquipmentApplicationsApplicationsSME(P1609.3)WME(P1609.3)NME(P1609.3)CHME(P1609.3)MLME(E2213-03)Application Services (IEEE P1609.2)UDP (RFC 768, P1609.3)Networking Services *Networking Services (L3)(P1609.3, ISO 21210)LLC (IEEE 802.2, P1609.3)Channelization (IEEE P1609.4)MAC (ASTM E2213-03)AppOtherRadiosAppTCPOtherDevicesInterfaceManagerin-vehicle networkUDP/TCP/(other)Networking Services(L3)Interface ManagerSMEPLME(E2213-03)PHY (ASTM E2213-03)WAVE SystemSupport formultiple radios7

Based on IEEE 802.11a• High speed road impacts physical layer• Very short latency (

Types of Applications• Signage• Collision avoidance• Emergency vehicle• Transit• Fee collection• Internet access• Commercial vehicle operations (CVO)• (and many others)9

Specific ApplicationsPrivate and Public Safety - Short RangeALL VEHICLES• ACCESS CONTROL• PROBE DATA COLLECTION• TRAFFIC INFORMATION• TOLL COLLECTION• GAS PAYMENT• DRIVE-THRU PAYMENT• DATA TRANSFER (IDB, J1708, J1939, PCI, etc.)– ATIS DATA– DIAGNOSTIC DATA– REPAIR-SERVICE RECORD– VEHICLE COMPUTER PROGRAM UPDATES– MAP and MUSIC DATA UPDATES• RENTAL CAR PROCESSINGPublic Safety - Extended Range• IN-VEHICLE SIGNING– WORK ZONE WARNING– HIGHWAY/RAIL INTERSECTION WARNING– ROAD CONDITION WARNING• INTERSECTION COLLISION AVOIDANCE• VEHICLE TO VEHICLE– VEHICLE STOPPED or SLOWING WARNING– VEHICLE-VEHICLE COLLISION AVOIDANCEPrivate and Public Safety - Short RangeCVO• MAINLINE SCREENING• BORDER CLEARANCE• ON-BOARD SAFETY DATA TRANSFER• UNIQUE CVO FLEET MANAGEMENT• DRIVER’S DAILY LOG• VEHICLE SAFETY INSPECTION• TRANSIT VEHICLE DATA TRANSFER (gate)• TRANSIT VEHICLE REFUELING• LOCOMOTIVE FUEL MONITORING• ROLLOVER WARNING• LOW BRIDGE WARNINGPrivate and Public Safety - Large Zone• TOLL COLLECTION• TRANSIT VEHICLE DATA TRANSFER (yard)• LOCOMOTIVE DATA TRANSFER• CVO TRUCK STOP DATA TRANSFERPublic Safety - Intersection and Emergency• EMERGENCY VEHICLE SIGNAL PREEMPTION• TRANSIT VEHICLE SIGNAL PRIORITY• EMERGENCY VEHICLE VIDEO RELAY• EMERGENCY VEHICLE APPROACH WARNING10

Roadside Unit PlacementSometimes someplace instead of everywhere always11

Good News/ Bad NewsCan be targeted to specific lanes, directions of travel but notfor wide area coverage12

General Internet Access13

On-Demand/Dynamic Navigation14

Traffic Advisories15

Use Vehicles as Traffic Probes16

Travel Assistant17

Information or Transaction Request18

Information Requested over Internet19

Data Downloaded Later20

Standards Program21

Participants in DSRC Standards Development• DaimlerChrysler• General Motors• Nissan• Ford• Toyota• BMW• Volkswagen• 3-M• Acunia• Amtech• ARINC• Armstrong Consulting• Atheros• Caltrans• Denso• GTRI• Hitachi• IDMicro• IMEC• Intersil• ITS-America• JHU/APL• King County Metro Transit• N.Y. Thruway Authority• AASHTO• Michigan DOT• Washington State DOT• MiCOM Spa• Mitretek• Motorola• Mark IV• OKI Electric• PATH• Raytheon• SIRIT• Highway Electronics• Sumitomo Electric• TechnoCom• Toshiba• TransCore• Visteon• Wi-LAN• JHU/APL22

Vehicle Safety CommunicationsConsortium (VSCC)DOTFHWANHTSA...FCCOEMsCoordinatorTest & validationStandardsBodiesASTMSAEIEEE...23

Program Schedule2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Standards DevelopmentArchitecture StandardLower Layers (LL) Standard Lower Layers RevisionIEEE Upper Layers (UL) StandardUL RevisionOriginalNewIndustry OnlyISO Networking and Probe Data StandardsLayer 1, 2PrototypeFull PrototypePublic AwarenessLL Test StandardSecurityUL Test StandardInitialCertificationNew ProductCertificationTest DevelopmentTestProduct DevelopmentProductionMessage Set StandardsStandards MaintenanceAuto Industry Evaluation and InputDEMOOutreach to State DOTs DEMOFCC Rule DevelopmentFCC Rule RefinementAuto / Commercial Industry and Government Application DevelopmentOutreach toState DOTsInitial ApplicationDeploymentMature ApplicationDeploymentSafetyApplication24Deployment

For Further Informationwww.leearmstrong.com/DSRCHome/DSRCHomeset.htm25