Wireless and optical convergent access technologies toward 6G

HRD Filgueiras, ES Lima, MSB Cunha… - IEEE …, 2023 - ieeexplore.ieee.org
The sixth generation of mobile communication (6G) systems is recently rising a lot of interest,
introducing new futuristic and challenging use cases that will demand much more than just …

Delta-sigma modulation for next generation fronthaul interface

J Wang, Z Jia, LA Campos, C Knittle - Journal of Lightwave …, 2019 - opg.optica.org
A new function split option for the next generation fronthaul interface (NGFI) is demonstrated
based on all-digital RF transmitter using bandpass delta-sigma modulation. Different from …

Analog vs digital radio-over-fiber: a spectral efficiency debate from the SNR perspective

D Che - Journal of Lightwave Technology, 2021 - ieeexplore.ieee.org
For decades, wireless communication networks have applied the digital interface like the
common public radio interface (CPRI) between remote sites and base stations for data …

Spectral efficiency comparison between analog and digital RoF for mobile fronthaul transmission link

H Ji, C Sun, W Shieh - Journal of Lightwave Technology, 2020 - ieeexplore.ieee.org
Mobile fronthaul requires an efficient transfer of radio signals between cell-site remote radio
heads (RRHs) and a centralized baseband unit (BBU) to satisfy diverse requirements on …

Integrated optical frequency comb for 5G NR Xhauls

ES Lima, RM Borges, N Andriolli, E Conforti… - Scientific Reports, 2022 - nature.com
We experimentally demonstrate the use of optical frequency combs (OFCs), generated by a
photonic integrated circuit (PIC), in a flexible optical distribution network based on fiber …

SNR improved digital-analog radio-over-fiber scheme for a millimeter wireless fronthaul

M Wang, J Yu, W Li, Y Wei, X Yang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
We propose a multi-order digital-analog radio-over-fiber (DA-RoF) scheme with different
quantization factors at each stage and verify it experimentally in a D-band photonics-aided …

DSP-enhanced radio-over-fiber technologies for 5G-and-beyond wired-wireless convergence

P Zhu, Y Yoshida, A Kanno… - Journal of Optical …, 2022 - opg.optica.org
Wired-wireless convergence is considered one of the most promising concepts for the
access networks in the upcoming beyond-5G era, a notable example being the radio-over …

End-to-end demonstration of fiber-wireless fronthaul networks using a hybrid multi-IF-over-fiber and radio-over-fiber system

HY Kao, S Ishimura, K Tanaka… - IEEE Photonics …, 2021 - ieeexplore.ieee.org
This paper reports an end-to-end demonstration of a fiber-wireless mobile fronthaul (MFH)
network based on hybrid intermediate-frequency-over-fiber (IFoF) and radio-over-fiber (RoF) …

Fibre wireless distributed antenna systems for 5G and 6G services

MU Hadi, G Murtaza - Electronics, 2022 - mdpi.com
The terahertz (THz) frequency bands are being explored as a potential means of enabling
an ultra-high transmission capacity in sixth-generation (6G) radio-access networks (RAN) …

Key fiber wireless integrated radio access technologies for 5G and beyond

GK Chang, YW Chen - 2019 24th OptoElectronics and …, 2019 - ieeexplore.ieee.org
Fiber-wireless integrated radio access technologies are the pillars to enable game-changing
network architectures to deliver extremely diverse and demanding services required by 5G …