Wireless Sensor Network used to improve the energy efficiency in connected railway vehicles

This paper presents a solution using Zigbee network for improving energy efficiency inside railway vehicles, especially for suburban train and metro. We present firstly a comparison between existing wireless technologies and the choice for our platform. The simulation tools simuEM3D has been used to complete the experimental results. Then we present and analyze the results of the measurement campaigns in subway and suburban trains. Finally, the optimization of ZigBee propagation is proposed to reduce interferences between vehicles of the same train and interferences between nearby trains.