Effect of M-QAM modulation technique for a converged network infrastructure Radio over Fiber (RoF)
DOI:
https://doi.org/10.14482/inde.39.1.621.3821Keywords:
Convergent Network, Fiber To The Home, Gigabit Passive Optical Network, Orthogonal Frequency Division Multiplexing, Quadrature Amplitude Modulation, Radio over FiberAbstract
The objective of the research is to analyze, at the simulation level, the effect of the M-Quadrature Amplitude Modulation (M-QAM) technique, in the downlink, for a converged Radio over Fiber (RoF) network infrastructure, implementing the Orthogonal Frequency Division Multiplexing (OFDM) technique and the Passive Optical Network architecture, with 10 Gbps capacity (XG-PON). The evaluation of the effect of the M-QAM modulation technique was done through a pre-established simulation methodology and using the optsim software for the network model and tests. In the results of the research, the increase of the order of M-QAM modulation for a converged OFDM-RoF network infrastructure allows to represent more bits per symbol, however, it requires a higher transmission power. The conclusion derives in the possibility of developing a robust converged OFDM-RoF network infrastructure of XG-PON type, implementing the M-QAM technique, since it efficiently uses the available bandwidth.
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