A DWDM-RoF system for the 5G Communication networks
DOI:
https://doi.org/10.61856/eme16g83Abstract
Abstract: Dense Wavelength Division Multiplexing (DWDM) and Radio over Fiber (RoF) are promising technologies that able to provide unlimited transmission capacity, which meets the growing demands of bandwidth in the communication systems. In this paper, an architecture for bidirectional DWDM-RoF access networks using single Mach Zehnder Modulator (MZM) is presented. The architecture is developed to generate 60 GHz millimeter-wave (mm-wave) using Optisystem simulation software version 18. This paper aims to implement the bidirectional DWDM-RoF and study the effect of phase imbalance on the mm-wave signal to reduce the insertion loss. It is found that the phase imbalance affects the insertion loss and the amplitude of the mm-wave signal. By decreasing the phase imbalance of the mm-wave signal, the insertion losses can be declined. The phase imbalance can be controlled by adjusting the injected phase and the best result collected at phases of π/3 and 5π/12. Also, the phase imbalance of the mm-wave signal can be decreased by achieving a splitting ratio of 0.5 in the system.
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