@article{6744b3a1b8604d4aa9f59c53ccbc7e37,
title = "High-Speed and Uninterrupted Communication for High-Speed Trains by Ultrafast WDM Fiber-Wireless Backhaul System",
abstract = "We developed a high-speed and handover-free communication network for high-speed trains (HSTs) using an ultrafast and switchable wavelength-division multiplexing fiber-wireless backhaul system in the W band. We successfully transmitted approximately 20-Gb/s and 10-Gb/s signals over the switched fiber-wireless links in the downlink and uplink directions, respectively. An ultrafast radio-cell switching of less than 10 μs was experimentally demonstrated in both downlink and uplink directions. Moreover, the possibility of connecting a central station to many remote radio cells was evaluated, confirming that an uninterrupted communication network up to several tens of kilometers can be achieved for HSTs. The proposed system can overcome the current challenges in mobile networks and can provide a potential solution for the provision of advanced services to users on HSTs in future 5G and beyond networks.",
keywords = "Fiber-wireless convergence, high-speed train, mobile backhaul, moving cell, radio-over-fiber",
author = "Dat, {Pham Tien} and Atsushi Kanno and Keizo Inagaki and Francois Rottenberg and Naokatsu Yamamoto and Tetsuya Kawanishi",
note = "Funding Information: Manuscript received July 14, 2018; revised October 25, 2018 and December 2, 2018; accepted December 3, 2018. Date of publication December 7, 2018; date of current version February 1, 2019. This work was supported in part by the “Research and development for expansion of radio wave resources,” by the Ministry of Internal Affairs and Communications, Japan, and in part by JSPS KAKENHI under Grant 18K04156. (Corresponding author: Pham Tien Dat.) P. T. Dat, A. Kanno, K. Inagaki, and N. Yamamoto are with the Network System Research Institute, National Institute of Information and Communication Technology, Tokyo 184-0015, Japan (e-mail:, ptdat@nict.go.jp; kanno@nict.go.jp; k-inagaki@nict.go.jp; naokatsu@nict.go.jp). Publisher Copyright: {\textcopyright} 1983-2012 IEEE.",
year = "2019",
month = jan,
day = "1",
doi = "10.1109/JLT.2018.2885548",
language = "English",
volume = "37",
pages = "205--217",
journal = "Journal of Lightwave Technology",
issn = "0733-8724",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "1",
}