SCADA systems in the railway domain: enhancing reliability through Redundant MultipathTCP

Publication date:09/2015

Authors:Igor López, Marina Aguado, Christian Pinedo, Eduardo Jacob.
Series:Conference article
Publication details
Series: - Book title: 2015 IEEE 18th International Conference on Intelligent Transportation Systems
Chapter: - Edition: -
Volume: - Journal: -
Number: - Pages: 2305-2310
ISBN/ISSN: 2153-0017 Publication city: Las Palmas SPAIN
Reference: 10.1109/ITSC.2015.372

Reliability is a key research issue to promote the role of rail in the transportation system. An important set of critical and vital railway services, such as Traction Power Supply and Supervision Systems, relay currently on modern Supervisory Control and Data Acquisition (SCADA) systems. At the same time, these large scale and networked SCADA systems are deployed over heterogeneous wide area networks. Current strategies to warrant reliability on these systems focus on costly equipment redundancy or retransmission techniques with associated delay penalization. In this paper, we propose a MultiPath strategy with redundant policy to increase reliability in railway SCADA over TCP/IP systems. We built a hybrid simulation tool with real Modbus over TCP/IP equipment and validate our approach comparing the obtained results with three alternative strategies (default TCP/IP, backup and default delivery policy).