Keyhole estimation of a MIMO-OFDM train-to-wayside communication system on subway tunnels
- Moreno García-Loygorri, Juan
- Riera Salis, Jose Manuel
- Haro Ariet, Leandro De
- Rodríguez, Carlos
- Cuellar Navarrete, Luis
- Riera Salis, Jose Manuel
Publication date
January 2015
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
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
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