High-Speed Railway Communication System Using Linear-Cell-Based Radio-Over-Fiber Network and Its Field Trial in 90-GHz Bands
Atsushi Kanno,Naruto Yonemoto,Yosuke Sato,Masato Fujii,Katsuya Yanatori,Nobuhiko Shibagaki,Kenichi Kashima,Pham Tien Dat,Naokatsu Yamamoto,Tetsuya Kawanishi,Nagateru Iwasawa,Nariya Iwaki,Kazuki Nakamura,Kunihiro Kawasaki,Naoki Kanada +14 more
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A linear-cell-based radio-over-fiber (LC-RoF) system is proposed and demonstrated for efficient mobile communication in high-speed trains without hard handover processes.Abstract:
A linear-cell-based radio-over-fiber (LC-RoF) system is proposed and demonstrated for efficient mobile communication in high-speed trains without hard handover processes. The configuration of the LC-RoF network and possible router architectures are discussed for the field trial test of the proposed system and for advanced systems in the future. Via the LC-RoF network, 90-GHz, millimeter-wave radio access between the ground and a train car is operated in a centralized manner. The resulting throughput of 1.5 Gbit/s is achieved in the field trial test, which is comprised of 250-Mbaud four-subcarrier differential quadrature phase-shift keying with a forward-error correction code implemented in field-programmable gate arrays to the Shinkansen train traveling at 240 km/h without any interruptions in the connections at the change of radio access units.read more
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W-Band Optoelectronic Oscillator
TL;DR: In this paper, the first W-band optoelectronic oscillator (OEO) was demonstrated at 94.5 GHz with a measured single side band (SSB) phase noise of −101 dBc/Hz at an offset frequency of 10 kHz from the carrier.
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Reconfigurable Fiber Wireless IFoF Fronthaul With 60 GHz Phased Array Antenna and Silicon Photonic ROADM for 5G mmWave C-RANs
Apostolos Tsakyridis,Eugenio Ruggeri,George Kalfas,Ruud M. Oldenbeuving,Paul van Dijk,Chris G. H. Roeloffzen,Yigal Leiba,Amalia Miliou,Nikos Pleros,Christos Vagionas +9 more
TL;DR: The two-stage FiWi IFoF/mmWave fronthaul bus topology, based on a miniaturized, integrated, low loss Si3N4 ROADM and supporting high-capacity wireless beamsteering capability can form a promising roadmap towards flexible and reconfigurable 5G C-RAN architectures.
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Multi-User V-Band Uplink Using a Massive MIMO Antenna and a Fiber-Wireless IFoF Fronthaul for 5G mmWave Small-Cells
Eugenio Ruggeri,Apostolos Tsakyridis,Christos Vagionas,Yigal Leiba,George Kalfas,Nikos Pleros,Amalia Miliou +6 more
TL;DR: A multi-user Fiber Wireless IFoF/mmWave uplink comprising a 32-element 60 GHz Phased Array Antenna (PAA) and 10 km of fiber for 5G fronthaul networks is experimentally demonstrated, forming the first comparison of FDM and SDM towards multi- user 5G mmWave/IFoF networks.
Journal ArticleDOI
Transparent Fiber–Millimeter-Wave–Fiber System in 100-GHz Band Using Optical Modulator and Photonic Down-Conversion
Pham Tien Dat,Yuya Yamaguchi,Masayuki Motoya,Satoshi Oikawa,Junichiro Ichikawa,Atsushi Kanno,K. Yamamoto,Tetsuya Kawanishi +7 more
TL;DR: In this paper , the authors demonstrate the first fiber-millimeter-wave-fiber system in the 100 GHz band using a low-loss optical modulator and direct photonic down-conversion technology.
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A survey on advanced transmission technologies for high bandwidth and good signal quality for high-speed railways
TL;DR: A comprehensive survey of the appropriate literature published that concentrate on advanced transmission methods in HSR communications in getting higher bandwidth efficiency and maximize the signal quality is presented.
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