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2013 IEEE Latin-America Conference on Communications, LATINCOM 2013 - Conference Proceedings(1)
2016 IEEE Colombian Conference on Communications and Computing, COLCOM 2016 - Conference Proceedings(1)
2019 IEEE 4th Ecuador Technical Chapters Meeting, ETCM 2019(1)
ETCM 2021 - 5th Ecuador Technical Chapters Meeting(1)
IEEE Access(1)
A 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: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:scopusNovel Expressions for Ricean Sum Distributions and Densities
ArticleAbstract: This letter provides exact expressions for the sum statistics of independent and identically distribPalabras claves:cumulative distribution function, outage probability, Probability density function, Ricean fading channels, Ricean random variables, Sum of random variablesAutores: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:scopusPerformance Evaluation of Encoded Opportunistic Transmission Schemes
ArticleAbstract: The performance of encoded opportunistic transmission schemes in wireless channels affected by RaylePalabras claves:Bit error rate, error correction codes, opportunistic transmission, Rayleigh channels, Wireless CommunicationAutores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusPerformance analysis of opportunistic systems employing maximal ratio combining and antenna array
Conference ObjectAbstract: Exact and approximate expressions are presented in this paper to evaluate the performance of opportuPalabras claves:Autores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusPerformance evaluation of opportunistic wireless transmission in Rayleigh fading channels with co-channel interference
Conference ObjectAbstract: An opportunistic transmission method is proposed. This transmission method is realized just when thePalabras claves:Autores:Celso de Almeida, Nathaly OrozcoFuentes:scopusUMTS/HSPA and LTE cellular systems: On the frequency bands and the bit error rate
Conference ObjectAbstract: Two important aspects about UMTS/HSPA (Universal Mobile Telecommunications Service/High Speed PacketPalabras claves:Autores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly Orozco, NELSON BOLIVAR BENAVIDES CIFUENTES, RUBEN DARIO LEON VASQUEZ, Ruben LeónFuentes:googlescopusVirtual Learning Environments based on Beacons Devices
Conference ObjectAbstract: Due to current developments it is important that education go hand in hand with technology. CurrentlPalabras claves:ANDROID STUDIO, BLE Beacons, e-Learning, Internet-of-things, Virtual Learning EnvironmentsAutores:Henry Ramiro Carvajal Mora, José Julio Freire Cabrera, Juan Sebastián Peñaloza Marín, Nathaly OrozcoFuentes:scopus