Performance of max-dmin precoder in impulsive noise for railway communications in tunnels
KWDJANE ; VRIGNEAU ; LANGLAIS ; COCHERIL ; BERBINEAU
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
KWDJANE ; VRIGNEAU ; LANGLAIS ; COCHERIL ; BERBINEAU
Résumé / Abstract
In this paper, we investigate the bit error rate (BER) performance of max-dmin precoder with impulsive noise in a railway tunnel. Measurements showed that the received signal at the antenna on the moving train roof near the catenary suffers from electromagnetic noise interference (EMI). This implies that the traditional Gaussian noise model is not valid anymore and an impulsive noise model should be considered. Based on this observation, we analyze the performance of the max-dmin MIMO precoding technique, based on the minimum distance criterion, with impulsive noise modeled as an alpha-stable distribution. We present two points of interest: i) a theoretical approach for new detection techniques applied to the MIMO context in tunnel in the presence of heavy tailed alpha-stable impulsive noise leading to an approximation of the error probability of max-dmin precoder, and ii) a practical aspect considering a MIMO channel model in tunnel obtained by measurements for the performance simulation of communication system.
