5G RAN architecture based on analog radio-over-fiber fronthaul over UDWDM-PON and phased array fed reflector antennas

Dimitrios Konstantinou (Corresponding author), Thomas A.H. Bressner, Simon Rommel, Ulf Johannsen, Martin N. Johansson, Marianna V. Ivashina, A. Bart Smolders, Idelfonso Tafur Monroy

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This manuscript introduces a 5G radio access network architecture concept based on ultra-dense wavelength division multiplexing (UDWDM) and incorporating an optical fronthaul network that uses a novel wireless antenna system for radio frequency transmission and reception. A ring topology is proposed where optical signals travel within the 5G UDWDM passive optical networks and millimeter waves are generated in the optical line terminals by optical heterodyning. The wireless transmission of the millimeter waves is conducted by an innovative phased array fed reflector antenna approach for mobile communications that grants high antenna gain due to highly focused radiation characteristics, as well as multiplexing gain by multiple beam generation. Furthermore, beam steering is provided by a radio frequency analog beamformer network. Finally, implementation options synthesizing the total system are discussed.

Original languageEnglish
Article number124464
Number of pages10
JournalOptics Communications
Publication statusPublished - 1 Jan 2020



  • 5G
  • Analog radio-over-fiber
  • Beam steering
  • mm-wave
  • Reflector antennas

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