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.

Amplified radio-over-fiber system linearization using recurrent neural networks

Luiz Augusto Melo Pereira, Luciano Leonel Mendes, Carmelo José Albanez Bastos Filho, and Arismar Cerqueira Sodré
J. Opt. Commun. Netw. 15(3) 144-154 (2023)

Architectures and Algorithms for Radio-Over-Fiber Networks

Abhishek Dixit
J. Opt. Commun. Netw. 10(5) 535-544 (2018)

40 Gb/s W-band (75–110 GHz) 16-QAM radio-over-fiber signal generation and its wireless transmission

Atsushi Kanno, Keizo Inagaki, Isao Morohashi, Takahide Sakamoto, Toshiaki Kuri, Iwao Hosako, Tetsuya Kawanishi, Yuki Yoshida, and Ken-ichi Kitayama
Opt. Express 19(26) B56-B63 (2011)

Hybrid radio-over-fiber transport system to support heterogeneous indoor mobile network environments

Sang-Rok Moon, Minkyu Sung, Eonsang Kim, Joon Ki Lee, Seung-Hyun Cho, and Joonyoung Kim
J. Opt. Commun. Netw. 16(2) 71-80 (2024)

High-speed fiber–wireless–fiber system in the 100-GHz band using a photonics-enabled receiver and optical phase modulator

Pham Tien Dat, Toshimasa Umezawa, Atsushi Kanno, Naokatsu Yamamoto, and Tetsuya Kawanishi
Opt. Lett. 47(5) 1149-1152 (2022)