Abstract: This paper introduces a bidirectional transmission system based on RoF and PWoF system. The wireless signal transmission is combined with the electric power transmission through the optical fiber network. The transmission capacity and efficiency of the system are simulated by experiment, and it is verified that the system can provide the electrical energy needed by the remote antenna unit and centralize the power supply system in the central control system. The performance of the hybrid system is simulated, and the reliability of the system is verified.

Key words: RoF, PWoF, hybrid transmission