Communications for High-Speed Moving Objects: IEEE 802.16e, IEEE 802.20 and 5.9 GHz

Communications for High-Speed Moving Objects: IEEE 802.16e, IEEE 802.20 and 5.9 GHz DSRC

Published Date: February 2007

Published By: Practel, Inc.

Order Code: R606-54

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Description

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Vehicular communications are becoming a reality, driven by navigation safety requirements and by the investments of car manufacturers and Public Transport Authorities to create the “open road” concept.

In order to support mobility, a network infrastructure needs to be designed and implemented and this infrastructure has to provide reliable network access to objects traveling at high speeds. The access should be similar to what a person currently has at home, if not better. For cars and high-speed trains such communications should be supported for speeds not less than 200 km/h in a number of applications. These compunctions should also support Internet access, for example, for travelers in a bus or train.

The subject of this report is comparison and assessment of mobile technologies and markets for communications between high speed vehicles or between a vehicle and non-moving object. Particular, we are addressing:

Mobile WiMAX -802.16e
Technologies will be built on the evolving 802.20 standard
Technologies built on the evolving 802.11p and IEEE 1609 standards- Dedicated Short Reach Communications (WAVE-DSRC in the 5.9 GHz band).

These technologies are different, but their aims are similar in several aspects: to include applications supporting effective, reliable and secure V-to-V (vehicle-to-vehicle) or V-to-S (vehicle-to- station) communications. This communications should be sustained when vehicles operate with high-speed (such as 200 km/h).

These technologies are built on evolving standards, and, at the present time, only IEEE 802.16e is approved by the standard body. WAVE supports applications that require short-to-medium length communications spans, such as Electronic Toll Collection, safety, Automatic Vehicle Registration and others. The IEEE started to work on the 802.20 standard before it developed the 802.16e standard, but still cannot to come to consensus. The IEEE 802.20 technology is evolving as pure mobile, and its applications will include V-to-V or V-to-S communications for longer reaches. The IEEE 802.16e technology was developed based on the IEEE 802.16-WiMAX standard, and we do not expect that V-to-V and V-to-S will be in main interest for its users.

The report analyzes technological features and markets and compares these technologies applications for communications in high-speed moving objects environment.

Major Findings:

The analyzed technologies may find applications in communications between fast-moving objects, such as cars and trains
IEEE 802.16e is the only technology from the discussed three approved by the IEEE, though it, probably, find limited applications in the discussed by this report field
5.9 GHz DSRC is going to be used with such applications as ETC, AVR, safety and others
It looks like the analyzed technologies can compliment each other rather than compete
The market for vehicular communications is estimated in billions in the 2010-1012 time frame.

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