Congreso: WRCC 2013 .Tenth World Congress on Railway Research. 25-27 Noviembre, Sydney, Australia

Autores:  Jaime Calle-Sanchez, Mariano Molina-Garcia, David de-Antonio-Monte, José I. Alonso, Jean Raphael Olivier Fernández,Carlos López Martínez, Sergio Pérez Jiménez, Cesar Briso Rodríguez, Alfonso Fernandez-Duran 

In this paper, the main challenges associated with the migration process towards LTE, will be assessed. These challenges comprise, among others, the next key topics: Reliability, Availability Maintainability and Safety (RAMS) requirements, end to end Quality of Service (QoS) requirements, system performance in high speed scenarios, communication system deployment strategy, and system backward compatibility as well as the future system features for delivering railway services. The practical evaluation of some of the LTE system capabilities, for example, the evaluation of the radio propagation channel for broadband systems, the radio planning and the performance in High Speed Railway (HSR) scenarios, require the development of a LTE demonstrator and a LTE system level simulator. Under this scope, a RF LTE demonstrator has been designed and built. Besides, a software simulator of the LTE system has been designed and developed. These tools will provide valuable information for the assessing of LTE performance and suitability in real HSR scenarios.