Influence of Polarization on Keyhole Probability on a MIMO-OFDM Train-to-Wayside System on Tunnels

This letter presents a deep insight on a real implementation of a train-to-wayside broadband radio on subway tunnels that makes use of a 2 ×2 MIMO-OFDM setup. A keyhole is a phenomenon that usually happens in tunnels and that seriously degrades channel's capacity, even if both transmitter and r...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2015, Vol.14, p.1798-1801
Hauptverfasser: Moreno Garcia-Loygorri, Juan, De Haro, Leandro, Rodriguez, Carlos, Cuellar, Luis, Riera, Jose Manuel
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container_title IEEE antennas and wireless propagation letters
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creator Moreno Garcia-Loygorri, Juan
De Haro, Leandro
Rodriguez, Carlos
Cuellar, Luis
Riera, Jose Manuel
description This letter presents a deep insight on a real implementation of a train-to-wayside broadband radio on subway tunnels that makes use of a 2 ×2 MIMO-OFDM setup. A keyhole is a phenomenon that usually happens in tunnels and that seriously degrades channel's capacity, even if both transmitter and receiver antennas are uncorrelated. The main purpose of this letter is to study in detail the influence of the polarization in the probability of having a keyhole on a MIMO-OFDM train-to-wayside communication system on a tunnel. MIMO keyholes are studied in four different polarization setups, six different tunnels cross-sections and, finally, capacity results are provided.
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subjects Antenna measurements
Channel capacity
Keyholes
MIMO
OFDM
Polarization
propagation
Railway communication
railways
subway tunnels
train-to-wayside communications
title Influence of Polarization on Keyhole Probability on a MIMO-OFDM Train-to-Wayside System on Tunnels
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