K
Kazuki Nakamura
Researcher at Railway Technical Research Institute
Publications - 16
Citations - 95
Kazuki Nakamura is an academic researcher from Railway Technical Research Institute. The author has contributed to research in topics: Communications system & Train. The author has an hindex of 5, co-authored 16 publications receiving 71 citations.
Papers
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Journal ArticleDOI
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
TL;DR: 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.
Proceedings ArticleDOI
Fast handover mechanism for high data rate ground-to-train free-space optical communication system
Kosuke Mori,Masanori Terada,Kazuki Nakamura,Ryoji Murakami,Kunitake Kaneko,Fumio Teraoka,Daisuke Yamaguchi,Shinichiro Haruyama +7 more
TL;DR: 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.
Proceedings ArticleDOI
Field Trial of 1.5-Gbps 97-GHz Train Communication System Based on Linear Cell Radio Over Fiber Network for 240-km/h High-Speed Train
Atsushi Kanno,Pham Tien Dat,Toshimasa Umezawa,Naokatsu Yamamoto,Tetsuya Kawanishi,Nagateru Iwasawa,Nariya Iwaki,Kazuki Nakamura,Kunihiro Kawasaki,Naoki Kanada,Naruto Yonemoto,Yosuke Sato,Masato Fujii,Katsuya Yanatori,Nobuhiko Shibagaki,Kenichi Kashima +15 more
TL;DR: It is demonstrated that 97-GHz millimeter-wave radio access system connected to bidirectional radio over fiber network for high-speed train systems achieves throughput from a central office to a 240-km/h train car.
Journal ArticleDOI
Fast Handover Mechanism for High Data Rate Ground-to-Train Free-Space Optical Communication Transceiver for Internet Streaming Applications
Kosuke Mori,Masanori Terada,Daisuke Yamaguchi,Kazuki Nakamura,Kunitake Kaneko,Fumio Teraoka,Shinichiro Haruyama +6 more
Journal ArticleDOI
Development of Broadband Telecommunications System for Railways Using Laser Technology
Kazuki Nakamura,Shingo Nakagawa,Hiroshi Matsubara,Daisuke Tatsui,Kiyotaka Seki,Shinichiro Haruyama,Fumio Teraoka +6 more
TL;DR: A field test using trains in active service, obtained results in which a transfer rate of approximately 700 Mbps in the TCP layer was achieved between the ground and a train running at a speed of approximately 130 km/h.