DSRC vs. C-V2X: Comparison of Connected Vehicles


Smart Transportation/DSRC/C-V2X - Grand-Tek

Vehicle-to-everything (V2X) has been a very popular topic since 2014, while NHTSA legalize that all the cars in the United States need to be equipped with a vehicle-to-vehicle (V2V) communication devices by 2023. Not to mention the EU version of ITS-G5 and the leading 3GPP of Cellular-V2X (C-V2X) are catching up lately. Grand-Tek is experienced in the DSRC & C-V2X communication, our DSRC antenna and the RSU are Omniair certified and we have been research and developed in DSRC relevant RF design since 2013.


What is DSRC and C-V2X?

DSRC is a dedicated short-range communications technology, developed based on IEEE 802.11p (Wi-Fi), and has a long history of development. The technology is mature, and the communication standards are clear. At present, actual products have been commercialized. Cellular vehicle-to-everything(C-V2X) is based on 4G/LTE/ The development of 5G communication technology, with strong networking capabilities and wide coverage, is compatible with current 4G and future 5G facilities, but the current development time is short.

What do DSRC and C-V2X have in common?

V2X technology has gradually progressed and matured. At present, the two main networking technologies are C-V2X and DSRC. Both C-V2X and DSRC communicate directly using the 5.9Ghz band. V2X is used for vehicle safety, which requires high speed and stability. In the future, through the installation of networked roadside equipment, most of the vehicles in the future will have the ability to network, which will effectively improve road safety.

DSRC and C-V2X comparison

Communication standard IEEE 802.11p: WAVE 3GPP Releases 14, 15, 16
Technological development early development Expected to mature gradually in 2022.
Frequency band 5.9Ghz band Compatible with current 4G/5G
Networking capability
  • support speed 500 km/h
  • communication range of upwards of 1km
  • transmission time 0.4mS
  • communication range higher than 1 KM
  • transmission time 1 Ms
  • 4000GB data volume
  • The standard technology is mature,
  • Products already on the market
  • Share existing LTE network
  • Large bandwidth/low latency/long transmission distance
  • Not compatible with existing LTE networks
  • A base station needs to be set up at the roadside
  • Communication standard planning
  • Inexperienced with the product

Smart Transportation Application

Recent case came from KPN- 5G truck platooning field trial test in Netherlands. In 2020 summer season, KPN from Netherlands has announced its successful 5G truck platooning field trial together with Bosch the Netherlands, Siemens, Kapsch TrafficCom AG, Eindhoven University of Technology.

First of all, what is truck platoon? Early in 2018, explained the newly aroused development thoroughly, "Truck platooning involves a number of trucks equipped with state-of-the-art driving support systems. The vehicles move in a group or platoon with the trucks driven by smart technology and communicating with one another. Truck platooning offers potential innovation for the transport sector globally."

Origins from 2018 May 17th
Related articles, “how truck platooning can benefit the transportation sector”

Smart Transportation/DSRC/C-V2X - Grand-Tek

It was believed this development enabled the capacity of loads, reduced fuel consumption and boosted traffic flow. This article also unveiled US truck platoon service provider Peloto Technology had started investment in the US and 9 states in the US has approved full truck platooning in later 2018. At the same time, EU countries also dedicated to this advanced development, for example Daimler Trucks, ENSEMBLE project and KPN this year.

Grand-tek outdoor subsystem integration

In this latest trial test, one pioneer car sent its intentions to following two vehicles. This 5G network not only ensures mobile signal coverage but also priorities decisions across all the applications. This benefits to vehicle IoT & auto-driving development, for example, fuel efficiency & CO2 emission. Click for the video

In this video, in order to send & receive signal across trucks and vehicles, roadside units(RSU) play an unbeatable roles within this technology, see below picture. RSU would be a device which is the centre of all the information exchange and deliver. Thus, they are always outdoor, mount high & firm. It should be waterproof or weatherproof, usually with surge protection. It also should be low profile to keep any attention out. IK rating product would be recommended. The omni and the mushroom-shaped external antenna contains the above significances. They are from Grand-Tek outdoor DSRC & C-V2X/V2V Communication series. It is also worth addressing the mounting brackets should be easy to install but hard to break. Do you think extended cable tie would work for long-term application? Grand-Tek provides a wide range of brackets which are compatible to worldwide devices.

Smart Transportation/DSRC/C-V2X - Grand-Tek

Visit our IK rating, DSRC product family as well as enclosure series page for more spec details.

Grand-Tek has been providing sub-system and antenna for many of intelligent transportation systems (ITS) trial test. ITS includes tolling, traffic management, smart urban mobility, traffic safety and security and connected vehicles. As a one-stop solutions provider, Grand-Tek offers total solutions covering all the above. Do you have any gating point with RSU or CV2X antenna? Share your experience with us.

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