80 Gb/s 2 × 2 MIMO Fiber–Wireless Integrated System in W Band Using IFoF Transmission

We present a high-speed integrated fiber-wireless system in the W band for transmission of multiple-input multiple-output (MIMO) radio signals. The proposed system utilizes a wavelength-division multiplexing intermediate frequency-overfiber system and a remote generation and transmission of local oscillator signals. Satisfactory performance is experimentally confirmed for $2 \times 2$ MIMO FBMC/OQAM signal transmission with a total capacity of 80 Gb/s. The system is spectral-efficient and scalable for large-scale MIMO signal transmission and can be a promising solution for future mobile networks.