On the Use of SVR based Machine Learning Method for Nonlinearities Mitigation in Short Range Fronthaul Links

Muhammad Usman Hadi, Isha Mittal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

In this paper machine-learning (ML) dependent digital-predistortion (DPD) methodology is presented that overcomes the impairments of signal and non-linearities in Optical Front-hauls with the use of Radio over Fiber (RoF) systems. Volterra methods have been realized in the past for this purpose, however, they are not straight forward while classical artificial networks necessitate the optimum arrangement. The proffered support vector regression (SVR) method using grid search lessens the issues in Volterra based DPD and traditional artificial neural networks techniques In this work, the experimental evaluation for Long Term Evolution 20 MHz, 256 quadrature amplitude modulated signal using 850 nm Multi Mode Vertical cavity surface emitting lasers and Multi-Mode Fiber is linearized using SVR based DPD. The experimental analysis finds that SVR-DPD gathers the RoF non-linearities hence proving to be extraordinarily robust.

Original languageEnglish
Title of host publicationProceedings - 2021 IEEE 10th International Conference on Communication Systems and Network Technologies, CSNT 2021
EditorsGeetam S. Tomar
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages628-631
Number of pages4
ISBN (Electronic)9780738105239
DOIs
Publication statusPublished - 12 Apr 2021
Event10th IEEE International Conference on Communication Systems and Network Technologies, CSNT 2021 - Bhopal, India
Duration: 18 Jun 202119 Jun 2021

Publication series

NameProceedings - 2021 IEEE 10th International Conference on Communication Systems and Network Technologies, CSNT 2021

Conference

Conference10th IEEE International Conference on Communication Systems and Network Technologies, CSNT 2021
Country/TerritoryIndia
CityBhopal
Period18/06/2119/06/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

  • Digital predistortion
  • Optical fronthaul link
  • Radio-over-fiber

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