Experimental evaluation of digital predistortion for VCSEL-SSMF-based Radio-over-Fiber link

Muhammad Usman Hadi, Jacopo Nanni, Pier Andrea Traverso, Giovanni Tartarini, Olivier Venard, Geneviève Baudoin, Jean Luc Polleux

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

15 Citations (Scopus)

Abstract

This article proposes a Digital Predistortion (DPD) technique in order to enhance the linearity of short and limited range Mobile Front Haul (MFH) links for the present Long-Term Evolution (LTE) and future (5G) cellular networks. The proposed technique is applied to 850 nm Single Mode Vertical Cavity Surface Emitting Lasers (VCSELs) and Standard Single-Mode Fibers (SSMFs) low cost and low consumption Radio-over-Fiber (RoF) link. Memory Polynomial is employed using Indirect Learning Architecture (ILA). Moreover, the resilience of the DPD approach to changes in input power levels is investigated. The improvements in the quality of the received signal due to the proposed solution are illustrated with reference to scenarios of applicative interest. The performance of proposed technique is evaluated in terms of Adjacent Channel Power Ratio (ACPR) and Normalized Mean Square Error (NMSE) for entire LTE frame of 10ms for 5 MHz band signal having 64 QAM modulation format.

Original languageEnglish
Title of host publicationMWP 2018 - 2018 International Topical Meeting on Microwave Photonics
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538652268
ISBN (Print)9781538652275
DOIs
Publication statusPublished - 29 Nov 2018
Event2018 International Topical Meeting on Microwave Photonics, MWP 2018 - Toulouse, France
Duration: 22 Oct 201825 Oct 2018

Publication series

NameMWP 2018 - 2018 International Topical Meeting on Microwave Photonics

Conference

Conference2018 International Topical Meeting on Microwave Photonics, MWP 2018
Country/TerritoryFrance
CityToulouse
Period22/10/1825/10/18

Keywords

  • ACPR
  • Digital Predistortion
  • Indirect Learning Architecture
  • LTE
  • Radio-over-Fiber
  • VCSELs

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