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13 11 2019 01

As regulators worldwide look into future rules for connected vehicles, global cross-industry organization the 5G Automotive Association (5GAA) has been conducting tests to compare the performance of Dedicated Short-Range Communications (DSRC) and cellular technologies.

The 5GAA has been comparing 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 Vehicle-to-Everything (C-V2X) direct communications technology, consistently, and in many cases overwhelmingly, outperforms 802.11p/DSRC. With a natural evolution path toward the low latency and high-bandwidth benefits of 5G NR, C-V2X also demonstrated superior performance in several areas, including:

  • Enhanced reliability over extended communications range;
  • Better non-line-of-sight performance;
  • Greater resiliency to interference, such as that 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, and so on) where resident onboard sensors and radars have certain limitations.

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