DSRC performance assessment for crash warning applications

Recent focused automotive research topics, vehicle crash warning applications by using radio communication, especially DSRC (Dedicated Short-Range Communication) require more secured and steady communication than entertainment or information applications require. However radio communications between neighboring vehicles sometimes fail due to limited radio propagation, radio channel impairment caused by multipath or Doppler fading and radio interference from neighboring vehicles or other radio resources. Especially, the strong dependency of radio performance on antenna performance with installed in a vehicle makes radio performance assessment more difficult. In this paper, we will first introduce the advantages and challenges of crash warning applications with DSRC. Then we will introduce our 2 approaches; DSRC antenna development and radio performance assessment for critical use cases of crash warning applications in radio performance. Also, broader deployment of crash warning applications with DSRC will require unified performance requirements in the entire industry, as well as unified and repeatable methodologies to assess radio performance throughout the world.