CELLULAR AND 5.9 GHZ DSRC: COMPLIMENTARY NOT COMPETITIVE TECHNOLOGIES FOR VEHICULAR COMMUNICATIONS

摘要

This paper argues that there are three reasons why 5.9 GHz DSRC and cellular communications are complementary technologies: because cellular networks lack extra capacity to provide authorities the bandwidth needed for wireless applications; because using cellular networks will be more expensive for public authorities; and because cellular communications supports user-focused applications while 5.9 GHz supports local-focused applications. The paper then discusses the emerging application of vehicle miles travelled (VMT) fee charging and enforcement, a new application where both technologies are needed for effective implementation. Finally, the paper provides a framework for determining the primary communications technology (5.9 DSRC or cellular) to support a given application.