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Abstract

Fifth-generation mobile networks (5G) are the solution for the demanding mobile traffic requirements, providing technologies that fulfill the requisites of different type of services. The utilization of the millimeter-wave (mm-wave) band is the straightforward technique to achieve high bit rates. Moreover, analog radio-over-fiber (ARoF) brings outstanding benefits such as low cost, low power consumption, and high spectral efficiency, among others. Thereby, mm-wave ARoF is a strong candidate to pave the way for common public radio interface (CPRI) in the fronthaul for the future 5G architecture. As orthogonal frequency-division multiplexing (OFDM) is the adopted waveform in the 5G standard, it should be also utilized in mm-wave ARoF systems for 5G. However, phase noise is one of the most degrading factors in mm-wave OFDM ARoF systems. Therefore, in this work, an analysis of the phase noise is carried out through an experimental setup up. The configuration of this setup enables to gradually modify the final phase noise level of the system. Furthermore, an original and novel algorithm to compensate the phase noise in OFDM receivers is proposed. The performance of this algorithm is experimentally evaluated through the setup for different phase noise levels and different subcarrier spacings. The obtained results show the effectiveness of the proposed algorithm under those conditions, highlighting the viability of mm-wave OFDM ARoF for 5G and beyond.

Original languageEnglish
Article number9272853
Pages (from-to)1602-1610
Number of pages9
JournalJournal of Lightwave Technology
Volume39
Issue number6
Early online date27 Nov 2020
DOIs
Publication statusPublished - 15 Mar 2021

Funding

Manuscript received September 14, 2020; revised November 18, 2020; accepted November 23, 2020. Date of publication November 27, 2020; date of current version March 16, 2021. This work was supported by the ITN 5G STEP-FWD and blueSPACE Projects which has received funding from the European Union’s Horizon 2020 Research and Innovation Program under Grant 722429 and Grant 762055. (Corresponding author: Javier Pérez Santacruz.) Javier Pérez Santacruz, Simon Rommel, and Idelfonso Tafur Monroy are with the Institute for Photonic Integration, Eindhoven University of Technology, 5600 Eindhoven, The Netherlands (e-mail: j.perez.santacruz@tue.nl; simon.rommel@ieee.org; i.tafur.monroy@tue.nl).

FundersFunder number
European Union 's Horizon 2020 - Research and Innovation Framework Programme722429, 762055

    Keywords

    • 5G
    • 5G mobile communication
    • ARoF
    • Demodulation
    • Estimation
    • mm-wave
    • OFDM
    • phase noise
    • Phase noise
    • Receivers
    • Time-domain analysis

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