High data rate ground-to-train free-space optical communication system

Urabe, Hideki; Haruyama, Shinichiro; Shogenji, Tomohiro; Ishikawa, Shoichi; Hiruta, Masato; Teraoka, Fumio; Arita, Tetsuya; Matsubara, Hiroshi; Nakagawa, Shingo

doi:10.1117/1.oe.51.3.031204

Cited by 43 publications

(20 citation statements)

References 3 publications

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“…We found that the maximum handover time allowed for a continuous communication service is about 50 ms [10]. In the LaserTrainComm2012 prototype [9], the handover time was in the order of 100 ms, which was longer than the maximum handover time mentioned above.…”

Section: Free-space Optical Communication Betweenmentioning

confidence: 70%

“…We developed a free-space optical communication system called LaserTrainComm2012 to realize a stable high-data-rate communication between a train and the ground [9]. Laser-TrainComm2012 achieved handover time in the order of 100 milliseconds (ms) in the IP layer, but it was not short enough to serve passengers with streaming applications such as Skype.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fast handover mechanism for high data rate ground-to-train free-space optical communication system

Mori

Terada

Nakamura

et al. 2014

2014 IEEE Globecom Workshops (GC Wkshps)

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We developed a fast handover mechanism using a high-speed image sensor for a high data rate ground-to-train free-space optical communication system in order to achieve a continuous communication between passengers and the Internet. Using the new handover mechanism, we were able to achieve handover time of 21 milliseconds in the best case, which is short enough to offer live streaming Internet services such as Skype, YouTube, and Internet Radio.

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Section: Free-space Optical Communication Betweenmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Fast handover mechanism for high data rate ground-to-train free-space optical communication system

Mori

Terada

Nakamura

et al. 2014

2014 IEEE Globecom Workshops (GC Wkshps)

View full text Add to dashboard Cite

show abstract

“…However, it has good performance for unmanned vehicles with no weight restrictions [ 108 , 109 , 110 , 111 , 112 , 113 ]. In the OWC system of railway, the ATP mirror-based mechanism is more commonly used, and the primary problem to be solved is the vibration caused by the train during high-speed operation [ 114 , 115 , 116 , 117 , 118 ]. In [ 119 ], the ATP mechanism of micro-electromechanical systems-based and retroreflector-based that was used in UAVs is introduced in detail.…”

Section: Unmanned Aerial Vehicles (Uav) Ground Terminal Optical Wimentioning

confidence: 99%

Frontier Progress of Unmanned Aerial Vehicles Optical Wireless Technologies

Ding

Mei

Chih‐Lin

et al. 2020

Sensors

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With the continuous maturity of unmanned aerial vehicles (UAV) in materials, communications, and other related technologies, the UAV industry has developed rapidly in recent years. In order to cope with the diversified emerging business forms, the explosive growth of the scale of data traffic, number of terminal connections, high reliability, low-latency, and high transmission rate provided by the fifth generation (5G) network will inject new vitality into the development of the UAVs industry. In this paper, optical wireless technology is introduced into the UAV platform, combining theory with practical applications. We explain many research advances and key technologies in the four aspects of “air, space, earth, and sea” to achieve a strong and broadband communication link. This discussion focuses on link modeling, parameter optimization, experimental testing, and the status quo of UAVs in different application scenarios with optical wireless link configurations. At the same time, based on the current situation of UAV optical wireless technology, the technical problems and the research direction in the future are also discussed.

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“…Previous works on FSO systems have provided a comprehensive theoretical study and experimental validation on G2T communications. A high data rate (1 Gbps) G2T communications was proposed in [15], where an acquisition, tracking and pointing (ATP) mechanism based on the beaconing system was used to provide stable tracking and fast handover (i.e. 100 ms) in FSO links for high‐speed trains.…”

Section: Introductionmentioning

confidence: 99%