Connected car technology

Cellular V2X outperforms DSRC/ITS-G5 in comprehensive tests as mobility industry moves towards 5G

Munich (ots) - As regulators worldwide are looking into future
rules for connected cars technologies, the 5G Automotive Association
has conducted tests to compare the performance of 802.11p/DSRC (known
in Europe as ITS-G5) and Cellular V2X PC5 radio technologies in
delivering V2V (Vehicle-To-Vehicle) safety messages.

The test results show that Cellular V2X (Vehicle-to-everything)
direct communications technology, consistently - and in many cases
overwhelmingly - outperforms 802.11p/DSRC. With a natural evolution
path towards the low latency and high bandwidth benefits of 5G NR,
C-V2X also demonstrated superior performance in several dimensions,
including the following:

- Enhanced reliability over extended communications range;
- Better non-line-of-sight performance; and
- Greater resiliency to interference (e.g. arising from other
devices)

These performance advantages are particularly important in the
most difficult environments such as non-line-of-sight scenarios
(e.g., around a corner, highway queue forming etc.), where resident
on-board sensors and radars have certain limitations.

Reliable and timely radio performance is a crucial requirement
that all those with a stake in transport safety depend on to deliver
critical safety applications. Such test procedures are a prerequisite
to comparing the available radio technologies, and the results are
very clear: C-V2X direct communications (PC5) performs better. C-V2X
is commercially available and reuses the decades long investment into
protocols and upper layer applications to improve safety, deliver
traffic efficiency, and support automated driving.

The design and execution of each experiment was set up to ensure
that environmental conditions, radio frequency parameters, system
integration details, and physical structures were consistent when
comparing 802.11p/DSRC and C-V2X direct communications.

As yet another strong signal about the global momentum behind
C-V2X, 5GAA today counts 102 members (40% from Europe, 35%
Asia-Pacific and 25% Americas), an increase of 60% since January
2018, quite a movement for a 2-year-old organization.

5GAA brings together the automotive and ICT industry leaders from
all world regions among which carmakers, Tier-1 suppliers, mobile
network operators, chipset manufacturers, test equipment vendors,
telecom suppliers and traffic signal suppliers in order to continue
C-V2X field tests and to accelerate in-vehicle and infrastructure
commercial deployments, foreseen beginning in 2019 globally.