Application of Ad-hoc Network Technology to Railway Systems

Abstract

As tentative mobile networks can be easily constructed using ad-hoc network technology, hopes are high for its application across a range of fields. In this paper, we show the results of basic studies for its application in railway operational systems. First, we propose two application systems that can be constructed using ad-hoc network technology and clarify their transmission characteristics through simulation. We then report the measured values of radio propagation characteristics at varying frequencies suitable for use in ad-hoc networks constructed at stations and waysides. Finally, we introduce a radio propagation characteristics estimation program extended to include calculation of the propagation characteristics between two mobile nodes.