The road to vehicle communication (RVC) system used with Advanced Cruise-Assist Highway Systems (AHS) is known as Dedicated Short Range Communication (DSRC), which is a domestic standard specification developed for intelligent transport systems (ITS) in Japan. DSRC provides AHS with effective information services for the purpose of immediate driving assistance, and additionally provides a reference position for information services. AHS services require maintaining the strict safety of systems, and DSRC must also convey AHS information without fail to the vehicle. However, DSRC has erroneous data reception problems (reference position deviation, transmission of data to vehicles that are not service recipients, etc.) that are ascribable to radio wave propagation range. This paper will describe the overview of DSRC for use with AHS and the results of evaluation tests on DSRC problems, together with the countermeasures taken.
Samenvatting