ISSN : 1796-2021
Volume : 4    Issue : 4    Date : May 2009

Time-Reversal UWB Wireless Communication-Based Train Control in Tunnel
Hassane Saghir, Marc Heddebaut, Fouzia Elbahhar, Atika Rivenq, and Jean Michel Rouvaen
Page(s): 248-256
Full Text:
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This paper reports an evaluation of UWB radio technology and Time-Reversal (TR) technique in
tunnel environments for train-to-wayside communication. UWB technology has the potential to offer
simultaneous ground-totrain communication, train location and obstacle detection in front of the
trains. Time-Reversal channel pre-filtering facilitates signal detection and helps reduce
interference. Thus, UWB-TR combination provides a challenging, economically sensible, as well as
technically effective alternative solution to existing signaling technologies used in urban transport
systems. This paper deals with deterministic channel modeling and its characterization in tunnel
environment. It reports simulation performance evaluation of UWB-TR combinations in the
developed channel model.

Index Terms
UWB, time-reversal, channel modeling, ray tracing, railway systems, CBTC, tunnel, propagation.