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BER Evaluation of Linear Detectors in Massive MIMO Systems under Imperfect Channel Estimation Effects
ArticleAbstract: New perspectives for wireless communications have brought new techniques, such as a very large numbePalabras claves:BER, imperfect channel estimation, massive MIMO, Maximal-Ratio Combining, minimum-mean-square error, Zero-ForcingAutores:Carlos Daniel Altamirano Carrillo, Celso de Almeida, Henry Ramiro Carvajal Mora, Minango J.Fuentes:scopusBER 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: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:scopus