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BER analysis of overloaded MC-CDMA cellular system employing sphere decoder in non-ideal sectorization scenario
Conference ObjectAbstract: New multiple access techniques aim to increase the spectral efficiency by overloading the system, i.Palabras claves:BER, Interference, MC-CDMA, Non-ideal-sectorization, Sphere-decoderAutores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusBER of Massive MIMO in time-variant channels using multiplexed, superimposed and hybrid channel estimation techniques
ArticleAbstract: Massive MIMO (M-MIMO) is one of the most promising technologies towards fifth generation (5G) wirelePalabras claves:BER, Channel estimation, massive MIMO, Time-variant channels, Zero-forcing detectorAutores:Carlos Daniel Altamirano Carrillo, Celso de Almeida, Henry Ramiro Carvajal MoraFuentes:googlescopusBit error rate evaluation of SCMA in rician fading channels considering presence of co-cell interference
Conference ObjectAbstract: Non-orthogonal multiple access (NOMA) techniques have been proposed for fifth generation (5G) mobilePalabras claves:BER, Cellular system, Rician fading, SCMAAutores:Dennis Lara Hernandez, Efren Ona Proano, Frison C.I., Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusAn Augmented Reality based E-Learning Tool for Engineering
Conference ObjectAbstract: The importance of quality virtual education has been shown recently. However, there are certain areaPalabras claves:Android Application, Augmented-reality, e-Learning, hololensAutores:Cesra Josue Torres Hinojosa, Henry Ramiro Carvajal Mora, José Rodrigues Freire Filho, Nathaly OrozcoFuentes:scopusDesign and Implementation of a Panic Alert System to Notify Theft Events
Conference ObjectAbstract: Unfortunately, crime rates around the world increase every year. In particular, robberies in the strPalabras claves:ANDROID STUDIO, Mobile application, NETBEANS, Panic system, video surveillanceAutores:Henry Ramiro Carvajal Mora, Iván Sánchez Salazar, Marcos Gavela Moreno, Miguel Baquero Tello, Nathaly OrozcoFuentes:scopusEstudio de la eficiencia espectral para sistemas de comunicaciones móviles de tercera generación UMTS
Bachelor ThesisAbstract: El presente proyecto de grado titulado ESTUDIO DE LA EFICIENCIA ESPECTRAL PARA SISTEMAS DE COMUNICAPalabras claves:EFICIENCIA ESPECTRAL, ELECTRÓNICA, REDES, SISTEMAS DE COMUNICACION, TELECOMUNICACIONESAutores:Gonzalo Olmedo, Henry Ramiro Carvajal MoraFuentes:rraaeGLRT Detection of Nonfluctuating Targets in Background Noise Using Phased Arrays
Conference ObjectAbstract: This work assesses the performance of a phased array radar working in background noise. To do so, wePalabras claves:complex white Gaussian noise (CWGN), Generalized likelihood ratio test (GLRT), likelihood ratio test (LRT), Neyman-Pearson (NP) criterion, nonfluctuating targets, phased array radar, Probability of detection (PD)Autores:García F.D.A., Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusEnabling Signal Space Diversity for MU-MIMO/OFDMA Cellular Systems That Employ Frequency Diversity
ArticleAbstract: Signal space diversity (SSD) is a technique to obtain diversity without loss in spectral efficiency.Palabras claves:Diversity methods, MIMO, Mobile Communication, multiple access interference, OFDMAutores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly Orozco, Paulo Chiliguano T.Fuentes:scopusOn the Bit Error Rate of OFDMA Employing Short Cyclic Prefix and Maximal Ratio Combining
Conference ObjectAbstract: Orthogonal frequency division multiple access (OFDMA) has been chosen as the fourth generation (4G)Palabras claves:Bit error rate, maximal-ratio-combining, Ofdma, short cyclic prefixAutores:Celso de Almeida, García F.D.A., Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusOn the Bit Error Rate of Opportunistic Wireless Systems that Employ Non-Square Quadrature Amplitude Modulations
Conference ObjectAbstract: One of the phenomena that most affects the performance of wireless telecommunications systems is thePalabras claves:Bit error rate, Non-square modulations, opportunistic systemsAutores:Francisco Toapanta Hidalgo, Henry Ramiro Carvajal Mora, José Rodrigues Freire Filho, Nathaly OrozcoFuentes:scopus