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Specialist Task Force 395:
Configuration and validation of channel congestion control methods of ITS and techniques for co-existence cooperative ITS / Dedicated Short Range Communication and performance and potential for the STDMA medium access SA/ETSI/ ENTR/000/2009-08

Who we are:

The work within STF 395 is divided into two phases. Phase 1 started in January 2010 and phase 2 started their work

in March 2011.

Phase 1 Phase 2
Team Leader: Thomas Ritter Team Leader: Katrin Sjöberg
Team Members:

Dieter Smely
Jens Mittag

Nicolai Czink

Arno Hinsberger

Onn Haran

Robert Schmidt (not on photo)

Team Members: Riccardo Scopigno
Dieter Smely


What we do:

This STF will provide rules and guidelines to ensure performance and robustness of a cooperative communication system.

The first phase of the STF develops congestion control methods for existing wireless communication technology to cope with highly dynamic traffic scenarios in a rapidly changing radio propagation environment. The second task of the first phase of the STF will describe what is necessary to ensure coexistence between CEN DSRC and ITS G5.

The second phase will investigate if a time slotted medium access control method can increase the channel utilization for cooperative road traffic safety systems.

For more details, see our Terms of Reference

Why we do it:

ITS for road safety in the 5.9 GHz range contributes to the general goal of reducing accidents and fatalities. The expectation is that the market for ITS safety systems will be established. An important prerequisite is the scalability of the systems, i.e. the systems should work in low and dense traffic scenarios, with only a few or many ITS stations sharing the communication channel(s).

A common CCC policy will facilitate the market introduction of the system, since new users can be assured that their system will continue working if the number of participants in the VANET increases.

Improving road safety is a very important but costly task, which currently is financed by public funding and road tolling. Therefore, European Electronic Road Tolling is one of the sources that will finance cooperative ITS. Ensuring co-existence between these two technologies will keep the established funding process operational and will raise the acceptance for cooperative ITS by road operators and national authorities. This will have a positive effect on the deployment speed of cooperative ITS and hence the increase of road safety.

How we do it:

The work is planned in two phases:

Phase 1: Development of 2 ETSI TSs on Channel Congestion Control and on coexistence between ITS and existing tolling systems (TS 102 687 and TS 102 792)

ETSI DTS/ITS-0040013 providing suggestions for coexistence of cooperative ITS with the already existing tolling systems in the 5.9 and the 5.8 GHz bands
ETSI DTS/ITS-0040014 containing configuration recommendations and a validation report for channel congestion control algorithms operating in the 5.9 GHz range. The ETSI TR will form the basis for a common CCC policy and default specifications for cooperative ITS applications

Phase 2: Development of 2 ETSI TRs on STDMA performance and parameter settings (TR 102 861 and TR 102 862) 

ETSI DTR/ITS-0040020

on the recommended parameter settings for using STDMA for cooperative ITS

ETSI DTR/ITS-0040021

Performance evaluation of Self-organising Time Division Multiple Access (STDMA) as Medium Access Control method applied to ITS cooperative systems in road traffic scenarios.

Time plan for the work:

Phase 1

Initial meeting in Sophia Antipolis 08.03. – 13.03.2010

 Meeting Vienna 23.03.2010
 Meeting Vienna 25.05.2010
 Meeting Vienna 23.08.2010
WG4 meeting Mainz – decision on phase 2

Phase 2

Initial meeting in Vienna 07.04.2011
WG4 meeting in Vienna 02.05.2011

How to contact us:

Phase 1 (+43-51707-35127)

Phase 2

This information is based upon STF working assumptions.
The views expressed do not necessarily represent the position of ETSI in this context.

Last updated: 2013-04-13 17:33:04