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dc.contributorSantos Blanco, M. Concepción
dc.contributor.authorRomero Vidal, Cristóbal Manuel
dc.description.abstractOrthogonal frequency division multiplexing (OFDM) is a well-known modulation technique which is used in broadband wired and wireless communication systems, such as standard 802.11a/b/g/n, digital video broadcasting television (DVB-TV), and Long Term Evolution in the next mobile generation, due to its capacity in solving the problem of the Inter-symbol Interference caused by the effects of a dispersive channel. Since a few years ago, this technique has been used in optical communications which is the aim of this thesis. In this Master Thesis, the most relevant aspects of optical OFDM communication are described and implemented in optical simulation software called VPItransmissionMaker™ and VPIphotonicsAnalyzer™, (VPI). We find out that the OFDM coder and decoder provided by this program cannot be upgraded. This handicap does not allow modifying the main work algorithm and therefore the system cannot be improved. To solve this problem, it has been designed a Matlab OFDM coder and decoder to study the behaviour of optical OFDM systems using Intensity Modulation (IM) and Direct Detection (DD). As it will be detailed along the thesis, two different optical OFDM simulation scenarios using IM/DD are developed: an IM/DD RF and Hermitian Symmetry demos. Both of them are optical OFDM systems with an intensity modulation transmission and direct detection. The focus has been set primarily in obtaining a flexible, efficient and user-friendly simulation platform allowing for straightforward setup of advanced simulation of optical OFDM systems. The performance of these two scenarios is studied, taking advantage from the Simulation Script which VPI software provided in a more manageable mode, specifically, scripts using Tcl/tk language have been developed to derive power budget plots at desired Bit Error Ratio (BER).
dc.publisherUniversitat Politècnica de Catalunya
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica
dc.subject.lcshWireless communication systems
dc.subject.lcshOrthogonal frequency division multiplexing
dc.subject.otherOptical OFDM
dc.subject.otherFiber access networks
dc.titleOptimization of optical OFDM transmission systems
dc.typeMaster thesis
dc.subject.lemacComunicacions mòbils, Sistemes de
dc.subject.lemacComunicacions òptiques
dc.rights.accessOpen Access
dc.audience.educationlevelEstudis de primer/segon cicle
dc.audience.mediatorEscola d'Enginyeria de Telecomunicació i Aeroespacial de Castelldefels

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