C11: Communications Technologies for (high-speed) transportation systems (1)

Saturday, August 23  08:00-09:20,  Room #20

To increase quality, reliability, safety and security of Railway systems (underground, conventional trains and High speed trains) while increasing accessibility and productivity, modern railway operations rely on ever increasing fluxes of information between operators’ staff workstations, central databases and field devices widely distributed by the trackside and on board the train. This trend is accentuated by the development of automatic train control systems and driverless systems. The communications applications required in the railway domain are: safety-related services such as control and command, and non-safety related services such as passenger information, video surveillance, and internet on-board trains. Robustness, reliability, high data rate, spectral efficiency, optimization of radio resource usages are of significant interest for railway applications. Evaluating the performance of railway radio systems requires radio channel models for numerous propagation environments: rural areas, urban areas, tunnels, fast fading, Doppler effects, tunnels, cuttings, viaducts and electromagnetic interferences. Furthermore, dedicated antennas need be developed with adequate performance and placement. Security, robustness, throughput and latency are also strong requirements. The session will present the new results addressing these challenges.

8:00  C11.1   A HEURISTIC CROSS-CORRELATION MODEL OF SHADOW FADING IN HIGH-SPEED RAILWAY ENVIRONMENTS

R. He¹, Z. Zhong¹, B. Ai¹, C. Oestges²

¹State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China
²Institute for Information and Communication Technologies, Universite Catholique de Louvain, Louvain-la-Neuve, Belgium

8:20  C11.2   COMMUNICATION IN TUNNEL: CHANNEL CHARACTERISTICS AND PERFORMANCE OF DIVERSITY SCHEMES

M. Lienard¹, J. M. Molina-Garcia-Pardo², P. Laly¹, C. Sanchis-Gorras³, P. Degauque¹

¹IEMN/TELICE, University of Lille, Villeneuve d Ascq, France
²Dept. Techno., Info. and Comm, Univ Politec. di Cartagena, Cartagena, Spain
³Dept. of Telecom, Univ. San Antonio from Murcia, Murcia, Spain

8:40  C11.3   PROPAGATION PREDICTION FOR COMPOSITE SCENARIOS OF DENSE SEMI-CLOSED OBSTACLES IN HIGH-SPEED RAILWAY

K. Guan^1,2, Z. Zhong¹, B. Ai¹, T. Kuerner²

¹State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China
²Institut fuer Nachrichtentechnik, Technische Universitaet Braunschweig, Braunschweig, Germany

9:00  C11.4   PERFORMANCE OF MIMO PRECODERS IN TUNNELS FOR TRAIN-TO-WAYSIDE COMMUNICATIONS

J. -M. Kwadjane¹, B. Vrigneau², C. Langlais³, Y. Cocheril¹, M. Berbineau¹

¹IFSTTAR- COSYS- LEOST, Université Lille Nord de France, Villeneuve d’Ascq, France
²INRIA-IRISA, Université de Rennes1, Lannion, France
³Department of Electronics, Institut Telecom-Telecom Bretagne, Brest, France