Optical Video Transmission System of Terrestrial Broadcasting by Digitized-RoF Technology with Rate Reduction Method

Toward Terabit Digital Radio over Fiber Systems: Architecture and Key Technologies

“…I. INTRODUCTION Rapid developments of broadband services, e.g., emerging fifth-generation (5G) wireless technologies [1], terrestrial broadcast technologies [2,3], make access networks face significant challenges of handling ever-increasing traffic for radio services. Copper-based solutions for data transmission between access points and central offices (CO) come with severe limitations in both transmission distance and data rate per user.…”

“…Pulse coding based common public radio interface (CPRI) protocol [6] has been standardized to transmit digitized analog signals between the central unit and remote unit. Besides, since high definition video transmission employing high order modulations is also sensitive to the nonlinear channel distortions, such a digital RoF system is also promising to be employed in terrestrial broadcast networks [2,3]. However, when putting signal processing functions at the central unit, the system requires high transmission capacity due to a large number of quantization bits (QBs).…”