Real-time high-bandwidth mm-wave 5G NR signal transmission with analog radio-over-fiber fronthaul over multi-core fiber

EURASIP Journal on Wireless Communications and Networking

Evangelos Grivas¹  Evangelos Pikasis¹  Juliana Barros Carvalho²  Bruno Cimoli²  Simon Rommel²  Idelfonso Tafur Monroy²  Alvaro Morales²  Dimitrios Kritharidis³  Michail Katsikis³  Konstantinos Ntontin³  Mykhaylo Dubov⁴  Paul Mitchell⁴  Izabela Spaleniak⁴  Gilles Feugnet⁵  Delphin Dodane⁵  Jerome Bourderionnet⁵ 

[1] Eulambia Advanced Technologies;Institute for Photonic Integration, Eindhoven University of Technology;Intracom Telecom;Optoscribe Ltd;Thales Research and Technology;

关键词: 5G;    Millimeter waves;    Analog radio-over-fiber;    Real-time processing;   

DOI  :  10.1186/s13638-021-01914-6

来源: DOAJ

【 摘 要 】

Abstract This article presents an experimental demonstration of a high-capacity millimeter-wave 5G NR signal transmission with analog radio-over-fiber (ARoF) fronthaul over multi-core fiber and full real-time processing. The demonstration validates the core of the blueSPACE fronthaul architecture which combines ARoF fronthaul with space division multiplexing in the optical distribution network to alleviate the fronthaul capacity bottleneck and maintain a centralized radio access network with fully centralized signal processing. The introduction of optical beamforming in the blueSPACE architecture brings true multi-beam transmission and enables full spatial control over the RF signal. The proposed ARoF architecture features a transmitter that generates the ARoF signal and an optical signal carrying a reference local oscillator employed for downconversion at the remote unit from a single RF reference at the central office. A space division multiplexing based radio access network with multi-core fibre allows parallel transport of the uplink ARoF signal and reference local oscillator at the same wavelength over separate cores. A complete description of the real-time signal processing and experimental setup is provided and system performance is evaluated. Transmission of an 800 MHz wide extended 5G NR fronthaul signal over a 7-core fibre is shown with full real-time signal processing, achieving 1.4 Gbit/s with a bit error rate $$<3.8\times 10^{-3}$$ < 3.8 × 10 - 3 and thus below the limit for hard-decision forward error correction with 7% overhead.

【 授权许可】

Unknown