Skip to main content

Advanced Driver Assistance System (ADAS)




R-Car W2R system on chip for 5.9 GHz band in-vehicle wireless communications for vehicle-to-vehicle and vehicle-to-infrastructure communications (V2X)

Vehicle-to-everything (V2X) communications aim to reduce automobile accidents and traffic congestion by carrying out two-way communications between vehicles (vehicle-to-vehicle, V2V) or between vehicles and infrastructure such as traffic signals and road signs (vehicle-to-infrastructure, V2I) directly without passing through the cloud. V2X communications are being standardized in various countries and are anticipated to be an important technology for achieving autonomous driving. Development of this technology by automotive manufacturers, chip manufacturers, and technology and solution providers is accelerating.
Conventionally, camera images and infrared or millimeter wave radar have been used to support safe driving. Inability to get a grasp of traffic conditions on a wide scale, or to acquire information on approaching vehicles at intersections with poor visibility, were issues with this approach. The IEEE-802.11p wireless communications standard for the 5.9 GHz band was established in Europe and North America to enable information on approaching vehicles to be acquired in a broad range, even from positions having poor visibility. Renesas has offered support for this trend promptly by adding the new R-Car W2R series to the R-Car lineup. The R-Car W2R is compliant with IEEE-802.11p and can transmit high-quality signals, so it is capable of reliably acquiring a broad range of vehicular and infrastructural information. Furthermore, the R-Car W2R can be combined with the existing R-Car platform to make it possible to convey highly accurate information to the driver in real-time, including information that could not be captured by sensors that use camera images or radio waves. This is makes it possible to build an ADAS system that supports safe and secure driving.
Renesas has added this new product series to the R-Car lineup for car information systems, and will continue to expand this series for V2X applications. Renesas will offer solutions for V2X applications that can be used in combination with existing R-Car products for car information systems and advanced driver assistance systems.

V2X: Vehicle-to-Everything, including vehicle-to-vehicle and vehicle-to-infrastructure


Advanced Driver Assistance System (ADAS)

R-Car W2R R-Car V2H R-Car M R-Car H R-Car E R-Car T2


Renesas Automotive Product Catalog


Video Clip

  • R-Car W2R Vehicle-to-Vehicle Demo

End of content

Back To Top