Keyhole Estimation of an MIMO-OFDM Train-to-Wayside Communication System on Subway Tunnels

This letter presents a deep insight on a real implementation of a train-to-wayside radio on subway tunnels that makes use of a 2 × 2 multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) setup. The main purpose of this letter is to study in detail the keyhole phenomen...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2015-01, Vol.14, p.88-91
Main Authors: Moreno, Juan, de Haro, Leandro, Rodriguez, Carlos, Cuellar, Luis, Riera, Jose Manuel
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna measurements
Correlation
Digital video broadcasting
Keyholes
MIMO
multiple-input-multiple-output (MIMO)
orthogonal frequency-division multiplexing (OFDM)
propagation
Rail transportation
railways
subway tunnels
train-to-wayside communications
Wireless communication
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Summary:This letter presents a deep insight on a real implementation of a train-to-wayside radio on subway tunnels that makes use of a 2 × 2 multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) setup. The main purpose of this letter is to study in detail the keyhole phenomenon of an MIMO-OFDM train-to-wayside communication system on a tunnel. MIMO keyholes are studied in different tunnels sections, and capacity results are provided. Moreover, we introduce the first keyhole measurements on a railway tunnel. Finally, we follow a quantitative approach to estimate keyhole probabilities on each tunnel stretch and capacity outage curves.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2014.2356076