SNCF digital revolution

New media, CCTV real time and IoT require a high demand for “high quality data rate”. Data rate could be improved managing bandwidth, but wireless spectrum is becoming poor: link quality could be improved by increasing power, but devices transmitting power cannot exceed certain limit.

Today, new applications have a data rate more than 1 Gbps.
MIMO systems (Multiple Input Multiple Output) have been developed to improve the data rate with a really high quality in the transmission, and the aim has been successfully achieved.
MIMO systems, using several techniques like spatial multiplexing or antenna diversity, is the only chance to provide multiple services on the same frequency range with high quality level without losing data rate in the communication.

New MIMO antennas T01811825 & T01811826 permit to connect from 4 modems (or 2 2×2) to 12 modems (or 6 2×2) on frequency range from 700 MHz to 6 GHz; both models are 5G ready. Thanks to the SNCF contract, POLOMARCONI.IT will supply 8000 antennas between 2020 and 2025.