Abstract

QUILINDO MENDEZ, Cristian David; HOYOS ZUNIGA, Eduar Fernando  and  GOMEZ AGREDO, Gustavo Adolfo. Effect of M-QAM Modulation Technique for a Converged Network Infrastructure Radio over Fiber (RoF). Ing. Desarro. [online]. 2021, vol.39, n.1, pp.66-85.  Epub Oct 22, 2021. ISSN 0122-3461.  https://doi.org/10.14482/inde.39.1.621.3821.

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.

Keywords : Convergent Network; Fiber To The Home; Gigabit Passive Optical Network; Orthogonal Frequency Division Multiplexing; Quadrature Amplitude Modulation; Radio over Fiber.

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