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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:scopusBit 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:scopusA Scheduling Scheme for Improving the Performance and Security of MU-MIMO Systems
ArticleAbstract: For the receiver of multiple-input multiple-output (MIMO) systems, linear detectors are an interestiPalabras claves:imperfect channel estimation, MU-MIMO, Rician fading, scheduling, Zero-ForcingAutores:Almeida F., Edgar Rosero, Henry Ramiro Carvajal Mora, Nathaly Orozco, Paola Salazar, Stalin CacuangoFuentes:scopusA hybrid transmission scheme employing opportunistic transmission and multiuser diversity
Conference ObjectAbstract: In this paper, we present a novel transmission scheme, which consists of a hybrid transmission methoPalabras claves:BER, Hybrid transmission, Multiuser diversity, opportunistic transmission, Spectral efficiencyAutores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusAlternative representations for the probability of detection of non-fluctuating targets
ArticleAbstract: The authors derive a closed-form exact expression and a fast convergent series for the probability oPalabras claves:Autores:García F.D.A., Henry Ramiro Carvajal Mora, Nathaly Orozco, Santos Filho J.C.S.Fuentes: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:scopusAn Opportunistic System to Counteract Fading and Gaussian Interference Effects under Different Modulation Schemes
ArticleAbstract: In this paper we propose an opportunistic transmission in which the fading characteristics and interPalabras claves:Cellular system, co-channel interference, Opportunistic System, Rayleigh Fading ChannelAutores:Celso de Almeida, Henry Ramiro Carvajal Mora, 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:scopusGLRT 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:scopus