Multi-core fiber technology supporting MIMO and photonic beamforming in 5G multi-antenna systems: (Invited paper)

Maria Morant, Ailee M. Trinidad, Eduward Tangdiongga, Roberto Llorente

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

1 Citation (Scopus)

Abstract

This paper describes and experimentally validates different multi-Antenna system applications supported by a multicore fiber (MCF) optical fronthaul. The MCF fronthaul enables the simultaneous transmission of different optical data streams at the same wavelength by the spatial multiplexing of multiple-input multiple-output (MIMO) signals. In addition, the MCF enables simultaneous radio beamforming by transmitting the same optical data signal with different phase or time delays to each antenna element. Both MIMO and beamforming capabilities are required for 5G multi-Antenna systems. Experimental demonstrations of 4 \times 4 MIMO transmission and multi-beam 4 \times 1 beamforming using a commercially available 4-core fiber are reported in this work. Optical beam-steering in 5G is achieved using a Si3 N4 photonic chip based on optical ring resonators (ORRs) that enables the continuous and centralized tuning of the time delay applied to each antenna element.

Original languageEnglish
Title of host publication2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)978-1-7281-3625-7
DOIs
Publication statusPublished - Oct 2019
Event2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019 - Ottawa, Canada
Duration: 7 Oct 201910 Oct 2019

Conference

Conference2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
CountryCanada
CityOttawa
Period7/10/1910/10/19

Keywords

  • beamforming
  • integrated photonics
  • MIMO
  • multi-Antenna systems
  • Multi-core fiber
  • optical ring resonator (ORR)
  • radio beam-steering

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