Keyhole Estimation of an MIMO-OFDM Train-to-Wayside Communication System on Subway Tunnels
Keyhole Estimation of an MIMO-OFDM Train-to-Wayside Communication System on Subway Tunnels
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DOI：
10.1109/lawp.2014.2356076
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发表时间：
2015-01
影响因子：
4.2
通讯作者：
Juan Moreno;L. de Haro;Carlos Rodríguez;L. Cuellar;J. Riera
中科院分区：
文献类型：
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作者：
Juan Moreno;L. de Haro;Carlos Rodríguez;L. Cuellar;J. Riera
这封信深入探讨了地铁隧道上列车到路边无线电的实际实施，该无线电利用 2 × 2 多输入多输出正交频分复用 (MIMO-OFDM) 设置。这封信的主要目的是详细研究隧道上 MIMO-OFDM 车地通信系统的锁孔现象。对不同隧道断面的 MIMO 锁孔进行了研究，并提供了容量结果。此外，我们还首次介绍了铁路隧道上的锁孔测量。最后，我们采用定量方法来估计每条隧道延伸和容量中断曲线上的钥匙孔概率。
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.