DEDICATED SHORT RANGE COMMUNICATIONS DSRC AT 5.9 GHZ

1
DEDICATED SHORT RANGE COMMUNICATIONS(DSRC) AT
5.9 GHZ

• Lee ArmstrongArmstrong Consulting, Inc

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Role of DSRC in ITS Architecture
CENTERS
CENTERS
TRAVELERS
TRAVELERS
COMMERCIAL
MAINTENANCE
COMMERCIAL
MAINTENANCE
TRAFFIC
EMERGENCY
TOLL
TRAFFIC
EMERGENCY
TOLL
VEHICLE
CONSTRUCTION
REMOTE
VEHICLE
CONSTRUCTION
REMOTE
MANAGEMENT
MANAGEMENT
ADMINISTRATION
MANAGEMENT
MANAGEMENT
ADMINISTRATION
ADMINISTRATION
MANAGEMENT
TRAVELER
ADMINISTRATION
MANAGEMENT
TRAVELER
SUPPORT
SUPPORT
INFORMATION
FLEET
ARCHIV
ED
INFORMATION
FLEET
ARCHIV
ED
EMISSIONS
TRANSIT
EMISSIONS
TRANSIT
SERVICE
FREIGHT
DATA
PERSONAL
SERVICE
FREIGHT
DATA
PERSONAL
MANAGEMENT
MANAGEMENT
MANAGEMENT
MANAGEMENT
PROVIDER
MANAGEMENT
MANAGEMENT
INFORMATION
PROVIDER
MANAGEMENT
MANAGEMENT
INFORMATION
ACCESS
ACCESS
WIDE AREA WIRELESS (MOBILE)
WIDE AREA WIRELESS (MOBILE)
WIRELINE
(FIXED-POINT TO FIXED-POINT COMMUNICATIONS
WIRELINE
(FIXED-POINT TO FIXED-POINT COMMUNICATIONS
COMMUNICATIONS
COMMUNICATIONS
VEHICLE
VEHICLE
ROADWAY
ROADWAY
EMERGENCY
EMERGENCY
VEHICLE
VEHICLE
TOLL
TOLL
COLLECTION
COMMERCIAL
COLLECTION
COMMERCIAL
COMMUNICATIONS
DEDICATED SHORT RANGE
COMMUNICATIONS
VEHICLE TO VEHICLE
COMMUNICATIONS
DEDICATED SHORT RANGE
VEHICLE
VEHICLE TO VEHICLE
COMMUNICATIONS
VEHICLE
PARKING
PARKING
TRANSIT
TRANSIT
MANAGEMENT
MANAGEMENT
VEHICLE
VEHICLE
COMMERCIAL
COMMERCIAL
MAINTENANCE
MAINTENANCE
VEHICLE
VEHICLE
CONSTRUCTION
CONSTRUCTION
CHECK
CHECK
VEHICLE
VEHICLE
ROADSIDE
VEHICLES
ROADSIDE
VEHICLES
3
Dont Confuse With Existing DSRC

• 915 MHz
• Range
• Data rate 0.5 mbps
• Designed for ETC, but can be used for other
  applications
  
• Single unlicensed channel
• Requires special (custom) chip set software
• Vehicle to roadside
• Command-response

• 5.9 GHz
• Range to 1000 meters
• Data rate 6 to 27 mbps
• Designed for general internet access, can be used
  for ETC
  
• 7 licensed channels
• Uses open off-the-shelf chip set software
• Vehicle to roadside vehicle to vehicle
• Command-response peer to peer

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Based on IEEE 802.11a

• High speed road impacts physical layer
• Very short latency (
• Random MAC addresses to preserve privacy
• IPv6 for network layer (with header compression
  allowed)
  
• Multiple stack options above network layer
• Support for in-car networks

5
Types of Applications

• Signage
• Collision avoidance
• Emergency vehicle
• Fee collection
• Internet access
• Commercial vehicle operations (CVO)
• (and many others)

6
New Spectrum Allocation

• 75 MHz band has been allocated by FCC at 5.9 GHz
• Initial band use rules accepted
• No auction expected
• Band allows both safety and commercial
  applications to coexist
  
• Band is available for selected usage now

FCC NPRM out for comments, due March 17
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Channel Plan
IEEE 802.11a/RA WB - 52 carrier OFDM /w 48
data carriers, 10 MHz channels
Control Channel
Optional 20 MHz
Optional 20 MHz
US Spread Spectrum Allocation
Uplink
Downlink
Ch 172
Ch 174
Ch 176
Ch 178
Ch 180
Ch 184
Ch 182
Canadian Special License Zones
5.850
5.855
5.860
5.865
5.870
5.875
5.880
5.885
5.890
5.895
5.900
5.905
5.910
5.920
5.925
5.825
5.830
5.835
5.845
5.915
5.840
Frequency (GHz)
- The channels overlapping these zones may be
restricted in some locations in Canada. In these
cases use channels 1, 2, and 3 in their place.
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Architecture
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Specific Applications
Private and Public Safety - Short Range
CVO
Private and Public Safety - Short Range
ALL 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 PROCESSING

• MAINLINE SCREENING
• BORDER CLEARANCE
• ON-BOARD SAFETY DATA TRANSFER
• UNIQUE CVO FLEET MANAGEMENT
• DRIVERS DAILY LOG
• VEHICLE SAFETY INSPECTION
• TRANSIT VEHICLE DATA TRANSFER (gate)
• TRANSIT VEHICLE REFUELING
• LOCOMOTIVE FUEL MONITORING
• ROLLOVER WARNING
• LOW BRIDGE WARNING

Private and Public Safety - Large Zone

Public Safety - Extended Range

• TOLL COLLECTION
• TRANSIT VEHICLE DATA TRANSFER (yard)
• LOCOMOTIVE DATA TRANSFER
• CVO TRUCK STOP DATA TRANSFER

• 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 AVOIDANCE

Public Safety - Intersection and Emergency

• EMERGENCY VEHICLE SIGNAL PREEMPTION
• TRANSIT VEHICLE SIGNAL PRIORITY
• EMERGENCY VEHICLE VIDEO RELAY
• EMERGENCY VEHICLE APPROACH WARNING

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Performance Envelope
54


33
30
Data Transfer and Internet Access Services
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5850 - 5925 MHz Band Performance Envelope
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Data Rate (Mbps)
(Approximate)
21
18
12
Emergency Vehicle Services
Safety Message Services
9
6
Toll and Payment Services
3
902 - 928 MHz Band Performance Envelope
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
0.5 Mbps
Range (ft)
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Standards Program
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Overall Program Schedule
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IBTTA Program
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Vehicle Safety Communications Consortium (VSCC)
Standards Bodies
SAE
Government Agencies

ASTM
FCC
IEEE
Allocated DSRC Spectrum
DOT funds ASTM to lead the DSRC standardization
Coordinator provides interface between VSCC and
standards bodies
DOT
NHTSA
FHWA
...
Cooperative Agreement between DOT and OEMs for
VSC project
Coordinator
CAMP provides admin legal support for VSCC and
interfaces with DOT
VSCC



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VSCC Program

• Traffic signal violation warning
• Curve speed warning - rollover warning
• Emergency electronic brake lights
• Pre-crash sensing
• Cooperative forward collision warning
• Left turn assistant
• Lane change warning
• Stop sign movement assistance

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Roadside Unit Placement
Sometimes someplace instead of everywhere always
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Good News/ Bad News
Can be targeted to specific lanes, directions of
travel but not for wide area coverage
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General Internet Access
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On-Demand/Dynamic Navigation
20
Traffic Advisories
21
Use Vehicles as Traffic Probes
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Travel Assistant
23
Information or Transaction Request
24
Information Requested over Internet
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Data Downloaded Later
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Deployment

• Standards complete within 4-6 months
• Development, initial deployment can use existing
  802.11a products
  
• Spectrum available for test, development now
• Chicken and egg problem
• Public-private partnership potential
• Safety application typically need capacity
  
• Shared roadside infrastructure
• Shared costs
• Safety applications have priority access

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New CVO Applications

• Roll-over warning
• Low bridge warning
• Lead vehicle data transfer
• Collaborate cruise control settings
• Radar warnings
• Accelerator brake values
• Forward video camera
• HazMat/special cargo monitoring/tracking
• Truck stop data transfer
• In-city continuous Internet access
• Dispatch, route monitoring control
• Cargo monitoring/dynamic load management
• Traffic updates, travel advisories
• On-demand/on-event navigation

Plus existing mainline screening, border
crossing, etc.
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Potential Truck Stop Support
Entrance AnnouncementChannel 1
Internet AccessChannel 3
Gas Pumps
Vehicle Fueling Control
Fueling Channel 2
Pico Zone
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Todays System
Individual, independent products/systems
Maintenance software
Communications
Basic tractor
Fleet operations software
Basic trailer
Computer
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Near Term
Enhanced versions of existing products/systems,
selected integration
Enhanced maintenance software
Enhanced multi-mediacommunications
Enhanced operations software
Enhanced trailer
Enhanced tractor
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Near Term Truck Has Interacting Systems
Tire Monitoring
Communications
Convenience Features
Suspension
Instrument Panel
Lighting
Braking System
Heating, Vent, and Cooling
Transmission
Trailer Stability
Engine
IntelligentDriveline
Vehicle Control Systems
SafetySystems
Mobile Information Systems
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Moving To Data Driven Systems(Off-Board Systems)
Engineering
Trip Recorder
Manufacturing
Equipment Tracking Monitoring
Communications
Business Operations
Navigation
Spare Parts
Marketing Sales
Driver Interface
Maintenance
Truck Ordering
OEM Information System
Mobile Information System
Support System
Vehicle Operational Data
Powertrain
Safety Systems
Vehicle Control
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Future Emphasis On Integrated Information
Management
Engineering
Manufacturing
Business Operations
Marketing Sales
Wide Area Network
Truck Ordering
Corporate Information System
Networking System
Integrated Information System
Local Area Network
34
Future Vision
Integrated information system
integrated data model

integrated information system
Smart vehicle
Future systems will be based on integrated data
model and data flows
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Communications Will Be Key

• On-board networks
• Cell phones
• Satellite
• Radio
• Dedicated Short Range Communications (DSRC) at
  915 MHz
  
• New technologies
• Bluetooth
• IEE 802.11b (Wi-Fi)
• DSRC at 5.9 GHz

SAE J1708/J1587 nearing end of life
SAE J1939 emerging Future data networks Audio/vi
deo networks
Computer (IP) networks
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5.9 GHz DSRC

• Existing 915 MHz
• Range
• Data rate 0.5 mbps
• Designed for ETC, but can be used for other
  applications
  
• Single unlicensed channel
• Requires special (custom) chip set software
• Vehicle to roadside
• Command-response
• Expensive roadside systems (3000 each)

• New 5.9 GHz
• Range to 1000 meters
• Data rate 6 to 27 mbps
• Designed for general internet access, can be used
  for ETC
  
• 7 licensed channels
• Uses open off-the-shelf chip set software
• Vehicle to roadside vehicle to vehicle
• Command-response peer to peer
• Cheap roadside systems (about 300 each)

37
For Further Information

• www.leearmstrong.com/DSRCHome/DSRCHomeset.htm

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Summary

• We need to prepare for this future
• Technology is changing faster than standards
  process can respond
  
• Communications will be critical to all future
  transportation systems

The Internet is not being brought to the
vehicle, The vehicle will become a part of the In
ternet