Abstract

We report the signal transmission with an analog radio over multi-mode fiber (A-RoMMF) subsystem using a single-mode vertical cavity surface emitting laser and a cost-efficient bias-tee consisting of a coupling transmission line with an electrical circuit pattern. The frequency response of the coupling transmission line has a slope inverse to that of the A-RoMMF subsystem at the 28-GHz band to suppress the channel power difference of two component carrier signals for 800-MHz bandwidth signal transmission through a 200-m long multi-mode fiber (MMF). The evaluation was performed using 5th generation new radio (5G-NR) 64 quadrature amplitude modulation (64-QAM) orthogonal frequency division multiplexing (OFDM) signals with a center frequency of 28 GHz, two component carrier (CC), a bandwidth of 400 MHz/CC and subcarrier spacing of 120 kHz. Furthermore, we demonstrate the transmission of 5G-NR 64-QAM OFDM signals with two carrier component, a bandwidth of 400 MHz/CC and subcarrier spacing of 120 kHz signals when the novel A-RoMMF subsystem is adapted to a cascaded intermediate frequency over fiber based centralized radio access network mobile fronthaul system with a 200-m long MMF and 5-m distance wireless transmission.

Analog fiber-wireless downlink transmission of IFoF/mmWave over in-field deployed legacy PON infrastructure for 5G fronthauling

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Multiple beam-steering for 5G multi-user MIMO mobile fronthaul based on IFoF and RoF transmission

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Opt. Continuum 1(5) 1165-1175 (2022)

Optical receiver module design that improves link gain of 28 GHz RF signal over a multi-mode fiber

Hiroki Yasuda, Takamitsu Aiba, Atsushi Kanno, Naokatsu Yamamoto, Tomohiro Wakabayashi, and Tetsuya Kawanishi
OSA Continuum 3(5) 1249-1263 (2020)

Investigation of transmission performance in multi-IFoF based mobile fronthaul with dispersion-induced intermixing noise mitigation

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Opt. Express 25(8) 9346-9357 (2017)

Statistical Data Compression and Differential Coding for Digital Radio-Over-Fiber-Based Mobile Fronthaul

Mu Xu, Zhensheng Jia, Jing Wang, L. Alberto Campos, and Gee-Kung Chang
J. Opt. Commun. Netw. 11(1) A60-A71 (2019)