Optically powered radio-over-fiber systems in support of 5G cellular networks and IoT Articles uri icon

publication date

  • July 2021

start page

  • 4262

end page

  • 4269

issue

  • 13

volume

  • 39

International Standard Serial Number (ISSN)

  • 0733-8724

Electronic International Standard Serial Number (EISSN)

  • 1558-2213

abstract

  • We propose using power-over-fiber (PoF) in some part of future 5G cellular solutions based on radio access networks considering currently installed front-haul solutions with single mode fiber to optically power communication systems for 5G new radio (NR) data transmission. Simulations addressing design parameters are presented. Radio-over-fiber (RoF) transmission over single mode fiber (SMF) is experimentally implemented and tested for link lengths ranging from 100 m up to 10 km with injected PoF signals up to 2 W. 64QAM, 16QAM and QPSK data traffic of 100 MHz bandwidth are transmitted simultaneously with the PoF signal showing an EVM compliant with 5G NR standard, and up to 0.5 W for 256QAM. EVM of 4.3% is achieved with RF signal of 20 GHz and QPSK modulation format in coexistence with delivering 870 mW of optical power to a photovoltaic cell (PV) after 10 km-long SMF link. Using PoF technology to optically powering remote units and Internet-of-Things (IoT) solutions based on RoF links is also discussed.

keywords

  • 5g; chromatic dispersion; error vector magnitude; power-over-fiber; radio access network; radio-over-fiber; small cell