Feasibility Study on Over-the-Air Software Download for Software-Radio-Based Intelligent Transport Systems

摘要

We have proposed two types of software download methods for software radio (SR) based intelligent transport systems (ITS): (1) broadcasting-type software download method and (2) communication-type software download method. In this paper, we study their feasibility of their employment in a newly developed prototype. We give tangible examples of method (1) using the vehicle information and communication system (VICS) and method (2) using the dedicated short range communication (DSRC) system. We describe the download formats and procedures for both methods and use the experimental prototype to evaluate the basic software download time and configuration time. Morcover we also propose architecture of SR-based multi-mode torminal that can reduce download time and utilize over-the-air software download services by VICS and DSRC links.