Mostrando 10 resultados de: 23
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2019 IEEE 4th Ecuador Technical Chapters Meeting, ETCM 2019(3)
Electronics (Switzerland)(2)
IEEE Transactions on Vehicular Technology(2)
2016 8th IEEE Latin-American Conference on Communications, LATINCOM 2016(1)
2017 IEEE 2nd Ecuador Technical Chapters Meeting, ETCM 2017(1)
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Comparison and analysis of PAPR reduction techniques in OFDMA and SC-FDMA systems
Conference ObjectAbstract: This paper presents an analysis of the Orthogonal Frequency Division Mutiple Access (OFDMA) and SingPalabras claves:Clipping and Filtering, Ofdma, papr, SC-FDMA, Selective MappingAutores:Andres Fernando Reyes, Paredes Paredes, Martha Cecilia, Viviana MontalvoFuentes:scopusComparison of architectures for PAPR reduction in OFDM combining pilot symbols with constellation extension
Conference ObjectAbstract: A main drawback of Orthogonal Frequency Division Multiplexing (OFDM) systems is that they suffer froPalabras claves:Constellation extension, OFDM, Orthogonal pilot sequences, Peak power reductionAutores:García M., Paredes Paredes, Martha CeciliaFuentes:googlescopusAnalysis of quantization metrics for PAPR evaluation in OFDM systems
Conference ObjectAbstract: Orthogonal Frequency Division Multiplexing (OFDM) has become the popular modulation technique in higPalabras claves:Crest factor, cubic metric, OFDM, papr, Peak power reductionAutores:David Mejia Navarrete, Mejía David, Paredes Paredes, Martha Cecilia, Placencia D.F.P.Fuentes:googlescopusA Fast and Accurate Approximation of IEEE 802.11 Physical Layer Models for Network Simulators
ArticleAbstract: Network simulators are used for the research and development of several types of networks. However,Palabras claves:IEEE 802.11, Network simulator, Ns-3, OFDM, PERAutores:Diego Javier Reinoso Chisaguano, Juan Pablo Astudillo León, Luis Felipe Urquiza-Aguiar, Pablo Anibal Lupera-Morillo, Paredes Paredes, Martha Cecilia, Xavier Alejandro Flores CabezasFuentes:scopusAligning the Light Without Channel State Information for Visible Light Communications
ArticleAbstract: The use of light-emitting diodes (LEDs) for ambient illumination leads to visible light communicatioPalabras claves:blind interference alignment, channel state information, optical MIMO, precoding, reconfigurable photodetector, visible light communicationsAutores:García-Armada A., Morales-Cespedes M., Paredes Paredes, Martha Cecilia, Vandendorpe L.Fuentes:googlescopusAn Accurate, Fast Approximation for the Sum of Fading Random Variables via Expectation Maximization Applications to Diversity Systems
ArticleAbstract: Sums of fading envelopes occur in several wireless communications applications. The exact mathematicPalabras claves:Approximation methods, Diversity systems, expectation-maximization algorithms, Nakagami-m distribution, Performance AnalysisAutores:José David Vega Sanchez, Luis Felipe Urquiza-Aguiar, Paredes Paredes, Martha CeciliaFuentes:googlescopusAn Evaluation of OMNeT++-based V2X Communication Frameworks: On the Path towards 5G-V2X Simulations
Conference ObjectAbstract: The Third Generation Partnership Project (3GPP) has recently announced its Release 16, which introduPalabras claves:5G, C-V2X, network simulators, NR-V2X, omnet++Autores:Diego Javier Reinoso Chisaguano, Luis Felipe Urquiza-Aguiar, Mónica Aguilar Igartua, Pablo Barbecho Bautista, Paredes Paredes, Martha CeciliaFuentes:scopusFading channel models for mm-wave communications
ArticleAbstract: A realistic performance assessment of any wireless communication system requires the use of a fadingPalabras claves:Fluctuating multiple-ray model, Generalized fading channels, Mm-wave, κ-µ shadowedAutores:José David Vega Sanchez, Luis Felipe Urquiza-Aguiar, Paredes Paredes, Martha CeciliaFuentes:googlescopusExpectation-Maximization Learning for Wireless Channel Modeling of Reconfigurable Intelligent Surfaces
ArticleAbstract: Channel modeling is a critical issue when designing or evaluating the performance of reconfigurablePalabras claves:Channel modeling, Expectation-maximization, outage probability, reconfigurable intelligent surface, spatial correlationAutores:José David Vega Sanchez, López-Martínez F.J., Luis Felipe Urquiza-Aguiar, Paredes Paredes, Martha CeciliaFuentes:googlescopusEffect of Constellation-shaping-based PAPR Reduction Methods Over the Capacity of OFDM Systems
Conference ObjectAbstract: This paper studies the effect of two Peak to Average Power Ratio (PAPR) reduction methods over the cPalabras claves:ACE-POCS, BBCE, capacity, OFDM, papr, water-fillingAutores:Diego Javier Reinoso Chisaguano, Luis Felipe Urquiza-Aguiar, Paredes Paredes, Martha CeciliaFuentes:scopus