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Broadband Access in Complex Environments: LTE on Railway
César BRISO-RODRÍGUEZ Carlos F. LÓPEZ Jean R.O. FERNÁNDEZ Sergio PÉREZ Drasko DRASKOVIC Jaime CALLE-SÁNCHEZ Mariano MOLINA-GARCIA José I. ALONSO Carlos RODRÍGUEZ Carlos HERNÁNDEZ Juan MORENO José RODRÍGUEZ-PIÑEIRO José A. GARCÍA-NAYA Luis CASTEDO Alfonso FERNANDEZ-DURÁN
IEICE TRANSACTIONS on Communications
Publication Date: 2014/08/01
Online ISSN: 1745-1345
Type of Manuscript: INVITED PAPER (Special Section on EU's FP7 ICT R&D Project Activities on Future Broadband Access Technologies in Conjunction with Main Topics of 2013 IEICE ICT Forum)
LTE, railway, propagation, broadband, channel modeling,
Full Text: FreePDF
This paper assesses the main challenges associated with the propagation and channel modeling of broadband radio systems in a complex environment of high speed and metropolitan railways. These challenges comprise practical simulation, modeling interferences, radio planning, test trials and performance evaluation in different railway scenarios using Long Term Evolution (LTE) as test case. This approach requires several steps; the first is the use of a radio propagation simulator based on ray-tracing techniques to accurately predict propagation. Besides the radio propagation simulator, a complete test bed has been constructed to assess LTE performance, channel propagation conditions and interference with other systems in real-world environments by means of standard-compliant LTE transmissions. Such measurement results allowed us to evaluate the propagation and performance of broadband signals and to test the suitability of LTE radio technology for complex railway scenarios.