Research on the Connected Car Hans-J. Reumerman Philips Technology Research Laboratories Aachen Connectivity Systems Application Industry relations Technology.

Research on the Connected Car

Hans-J. ReumermanPhilips Technology Research Laboratories AachenConnectivity Systems

• Application• Industry relations• Technology & RWTH cooperation• Business Implications• Research Roadmap

Philips Technology Research Laboratories Aachen, Apr 21, 2023 [email protected] 2 /13

Connected Car applications • Safety

– Danger Warning– Cooperative sensing

• Road Tolling • Private &

Commercial• Logistics

• Traffic Management– Time, Space, Energy

resource efficiency

• Driver assistance– Real-time & local

info– Remote diagnosis

Philips Technology Research Laboratories Aachen, Apr 21, 2023 [email protected] 3 /13

Starting Point

Ad-

hoc

WLA

N

• USA: 5.9 GHz IEEE 802.11pDSRC Industry Cons.Field Trials 2007Nat. decision 2008

• Japan: Safety-cars incl. Car2car technology;VICS widely deployed

• Europe: eSafety Initiative; 5,8 Ghz discussed in ECC;Research projects

The first large scale "self org. ad-hoc networks" application?

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PREVENT 2004-2006Wireless Local Danger Warning - WILLWARN • based on car2car comm. and assists driver

by means of warning and foresighted information

• provides an electronic horizon

www.prevent-ip.org

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Car-2-Car Communication Consortium

• open for suppliers, research organisations and other partners

• different levels of membership

More Information: www.car-2-car.org

LastMileCom

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Preparing the Standards for the connected car• consolidates input from all major research

projects• prepares EU frequency allocation &

standardisation• initiates prototyping (2006) and field trials (2007)

Charter

Coreteam

IEEE 1609.x

802.11p

IEEE 1609.x

802.11p

ETSI TC 37

ETSI TC 37

ITU-R WP8A

ITU-R WP8A

ISO TC 204 (CALM)

ISO TC 204 (CALM) Network on Wheels

Cooperative Vehicle-

Infrastructure SystemsSafeSpot

(infrastructure based safety)

SEVECOM (wireless security)

PREVENT projects

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Philips Research Focus

Local Danger Warning

Local Danger Warning

Safety Comfort

802.11p MAC802.11p MAC

TCP/IP and geocast based applications

TCP/IP and geocast based applications

Security & privacySecurity & privacy

Multi-hop distr. MACMulti-hop distr. MAC

Appl/SessionHandling

Appl/SessionHandling

IEEE 1609

WIGWAM AP5802.11p+

Commun. Protocols & 802.11p Simulation; algorithms for car2car prototype

PREVENT/ WILLWARN

Generic VANET functions

Navigation++drive-thru paymentlocal map updatesmultihop-RSU, car2car

Focus: Single-hop, 1km range, road2car

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RWTH cooperation

Team: Lothar Stibor, Yunpeng Zang, Dr. Rokitansky

• Channel and mobility model integrated into WARP2 (SDL) simulator (world first 802.11p MAC simulator)

• Highway and rural intersection scenario simulations

• Congestion avoidance for broadband VANET using beaconing for scheduled TxOp's (VWMN)

• Congestion control for 802.11 compatible solutions

• IEEE 802.11p and IEEE 1609 contributions & IPR

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Simulated Scenarios• Average car density

– message forwarding algorithms

– Coverage of the zone of relevance

– Stability of neighbourhood relations

– Hello message repetition rate

• High vehicle speed

– Communication with oncoming traffic

• Low equipment rate scenario

– Determination of minimum necessary equipment rate

• Traffic jam

– congestion control algorithms

• Discarding of outdated warnings

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Crosslayer Congestion ControlMulti-layer solutions for congestion control

in safety and comform mixed scenarios

SME

Applications

Routing

MAC

PHY

· Slow start and immediate drop for comfort traffic

· Access priorities with separated queues, AIFS settings

· Channel usage evalution for reserving bandwidth for safety services

· Dedicated RF for safety services;· Special preamble for safety

message;

Channel · Spectrum regulation for dedicated safety frequency channel

· Cancelling multihop comfort traffic @Network layer· Freeze/flush non-safety queues @MAC layer· Cancelling ongoing non-safety transmission @PHY layer

Safety Related

Message

Vehiculardata

Environm.data

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12

34 3 4

Field Test

Evaluate User appreciation

Get Buy-in from telematics stakeholders

Simulation

IEEE 802.11p

How to transfer knowledge into money

Concept evaluation

Industry Sponsorssupervise & execute

Feedback &improvement

Worldwide Standardisation

Vehicular Ad-hoc Network Simulation

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Business Implications

• US tolling drives 802.11p roll out• Government/legislation needs successful

deployment before investing in infrastructure

• Low-penetration applications need large coverage or municipal Wi-Fi

• Connected Car competes with Connected Driver (TomTom plus OBD2 via Bluetooth)

• Proven Security/Privacy solution is a Must