A Comprehensive Survey on OFDM Based Radio over Fiber Modulation System

Abstract

As a modulation system, Orthogonal Frequency Division Multiplexing (OFDM) transmits both wireless and optical channels and can spread the data across a large number of subcarriers. This received RF signals for long-haul transmission using the RoF system. The wireless network is considered the RoF (Radio over Fiber) system to improve the OFDM modulation signal's high orthogonality. It used both fixed and mobile networks for the next decade. For high data transmission, OFDM for mobile and RoF can be used for short distance or long backhaul networks. This begins with the implementation of fiber optics and then goes on with its transmission features to the concept of fiber optic cable. The concept of radio over fiber (RoF) is also discussed briefly. This research investigates the feasibility of multiplexing orthogonal frequency division (OFDM) as a RoF modulation system. OFDM fundamentals are then described, including its basic mathematical formulation. Among the modulation techniques, OFDM has achieved a fair level of eminence. Also presented is the generation and reception of RF-OFDM signal together with its optical device signal processing. In addition, OFDM's merits and demerits were advised on the basis of this technique's acceptance and popularity. In the next section the literature survey will be updated on the problem being formulated and the goals mentioned will be achieved.