Ferney Amaya-Fernandez

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In this paper we present a comparison of the peak to average power ratio (PAPR) between ortogonal frequency division multiplexing (OFDM) based on fast Fourier transform (FFT) and Fast-OFDM (FOFDM) based on discrete cosine transform (DCT). It is shown that although the probability of PAPR is slightly higher for systems using the discrete cosine transform,(More)
The study of the propagation effects that currently limit the performance of optical communication networks, allows implementing techniques that increase the capacity such as optical phase modulation and digital signal processing compensation. In this article we analyze the chromatic dispersion and nonlinearities for intensity and phase modulated signals(More)
When you have to choose what type of modulation is selected for an optical system, you must also decide the type of receptor to use and the cost benefit of its use. This paper presents the evaluation of two formats (BPSK and DPSK) with coherent detector and coherent differential detector for each format respectively, in order to determine which of the two(More)
In this paper we discuss Split - Step Fourier and Finite Difference methods to solve the nonlinear Schrödinger equation (NLSE), including dispersion and Kerr's effect analysis in a pulse across a single mode optical fiber. To accomplish this analysis, we start from Maxwell's equations and optical channel simplifications necessary to find the NLSE.
With the increasing amount of information that is demanding by fixed and mobile users through the multiservice networks, the deployment of the optical segment in the access network is a critical issue, with impact in the cost and performance of the overall network. While TDM-Passive optical network (PON) is standardized, hybrid WDM/TDM-PON is now clearly(More)
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