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22 Nov 08
DSRC Packet Sniffer, a vehicle-to-vehicle
communication technology is under demo
Sirit Inc has announced that they will demonstrate a Dedicated
Short Range Communications ("DSRC") Packet Sniffer
at the ITS World Congress. The Packet Sniffer is a listening
device used to independently verify transmitted DSRC data
and protocols. The new test tool is the first device to
verify IEEE 802.11p and 1609 standards based "Over-the-Air"
transmissions.
DSRC Overview
5.9GHz DSRC is a communication technology designed to provide
standards-based, interoperable, low latency, highly secure,
high-bandwidth vehicle-to-vehicle and vehicle-to-infrastructure
communications enabling a broad range of applications. Its
development represents a critical milestone toward the realization
of the combined goals of reduced accidents and fatalities
as well as improved mobility - all on one platform. A prominent
attribute of 5.9GHz DSRC is that it's based on open standards
and can be built by any supplier.
DSRC Benefits
As an independent single-channel listening device, the 5.9GHz
Packet Sniffer is a low-cost autonomous protocol analysis
tool that verifies transmitted data against published VII
protocols. The software runs on a Windows XP laptop and
captures and decodes over-the-air data packets. The single-channel
radio listening device detects DSRC units within a short
range and monitors either the control channel or service
channel. It decodes WSA ("WAVE Service Announcement"),
WSM ("WAVE Short Message") and UDP ("User
Datagram Protocol") messages per IEEE 1609 and SAE
J2735 standards along with embedded security certificates.
If the data transmitted over the 802.11p radio does not
meet protocols, the test tool reports the data seen and
provides information on whether the data can be decoded
properly. The Packet Sniffer represents a critical step
for Sirit's customers by providing a low cost verification
tool for OmniAir 5.9GHz DSRC device standards compliance
program.
Sirit originated its work with the DSRC Industry Consortium
with the responsibility of testing the developed technology
against the emerging 5.9GHz standards. Currently, Sirit
continues its RF Communications testing role in VII proof
of concept development.
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