Radio over Fiber: An Alternative Broadband Network Technology for IoT


  • Diego Fabián Paredes Páliz Universidad de Zaragoza
  • Guillermo Royo Electronic Design Group (GDE), I3A
  • Francisco Aznar Electronic Design Group (GDE), I3A
  • Concepción Aldea Electronic Design Group (GDE), I3A
  • Santiago Celma Electronic Design Group (GDE), I3A


Wireless broadband access networks have been positioning themselves as a good solution for manufacturers and users of IoT (internet of things) devices, due mainly to the high data transfer rate required over terminal devices without restriction of information format. In this work, a review of two Radio over Fiber strategies is presented. Both have excellent performance and even offer the possibility to extend wireless area coverage where mobile networks do not reach, or the 802.11 network presents issues. Radio Frequency over Fiber (RFoF) and intermediate Frequency over Fiber (IFoF) are two transmission strategies compatible with the required new broadband services and both play a key role in the design of the next generation integrated optical–wireless networks, such as 5G and Satcom networks, including on RAU (Remote Antenna Unit) new functionalities to improve their physical dimensions, employing a microelectronic layout over nanometric technologies.