Wireless Vehicular Network Standard Harmonization

This paper describes next generation vehicular network standard comparison among North America, Europe and Japan and provides harmonization proposal for Japanese DSRC (Dedicated Short Range Communication). The basic DSRC standards are in IEEE (Institute of Electrical and Electronics Engineers Inc.) and in ETSI (European Telecommunication Standard Institute). The IEEE and the ETSI have regular meetings for harmonization, which makes expanding common portion of each standard. However Japanese DSRC standard is ARIB (Association of Radio Industries and Businesses) who has well established previous vehicular communication for ETC (Electric Toll Collection) System application in advance since 1997. Therefore Japanese DSRC standard has been established independently. And it becomes problem for standard harmonization especially in Japan. Japanese ETC system has already expanded into not only Japan but also into Asia pacific countries and has established as ITU (International Telecommunication Union) for ETC. Asian countries including Japan face to improvement for their DSRC standard based on standard harmonization.