In this paper, the results of performance evaluations by computer simulations of beacon-vehicle communication protocols and their options for Dedicated Short Range Communications (DSRC), currently being proposed as candidates for standardization of the data link layer in Europe are presented. A comparison is made between these and the protocols being proposed in North America. Special emphasis is given to the performance analysis of systems for automatic fee collection and dynamic route guidance. With this respect the current state of the European standardization process concerning the specification of the physical layer and the data link layer, applications and traffic scenarios have been considered. The presented investigations show clearly that the application requirements will be met by the proposed DSRC standard proposals and the transaction success rate will be sufficiently high. Due to their higher flexibility the asynchronous link layer protocols proposed by the European standardization body CEN/TC278 (WG9) have some advantages related to the synchronous protocols. The simulation tools used for the presented investigations are able to assist for system design and evaluation of the system performance. (A)
Samenvatting