Mostrando 8 resultados de: 8
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2014 International Telecommunications Symposium, ITS 2014 - Proceedings(1)
2019 IEEE 4th Ecuador Technical Chapters Meeting, ETCM 2019(1)
2019 IEEE Colombian Conference on Communications and Computing, COLCOM 2019 - Proceedings(1)
6th IEEE Ecuador Technical Chapters Meeting, ETCM 2022(1)
AEU - International Journal of Electronics and Communications(1)
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 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:googlescopusAn 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:scopusOn the Interference Reduction Factor in Massive MIMO System over Rician Fading Channels
Conference ObjectAbstract: Massive Multiple-Input and Multiple-Output (M-MIMO) is considered a key technique in fifth-generatioPalabras claves:IRF, M-MIMO, uncorrelated Rician fading channelAutores:Carlos Daniel Altamirano Carrillo, Henry Ramiro Carvajal Mora, Jorge F. ArellanoFuentes:googlescopusOn the Secrecy Outage Probability of NOMA Systems Affected by Imperfect SIC over κ−μ Fading Channels
ArticleAbstract: Fifth-generation (5G) and beyond fifth-generation (B5G) wireless systems increase the transmission cPalabras claves:NOMA, physical-layer-security, secrecy-outage-probability, κ-μ fadingAutores:Adrián S. Arias, Almeida F.D., Brandon S. Rueda, Henry Ramiro Carvajal Mora, Leidy C. Huera, Nathaly V. OrozcoFuentes:scopusOn the performance of a CDMA opportunistic system in Rayleigh fading channel with inter-cell and co-cell interference
Conference ObjectAbstract: An opportunistic transmission method over a CDMA system is proposed. The performance is analyzed conPalabras claves:Autores:Celso de Almeida, Henry Ramiro Carvajal Mora, Nathaly OrozcoFuentes:scopusMC-CDMA and SCMA Performance Evaluation in 100% and 200% Load Factor Scenarios
Conference ObjectAbstract: In fifth-generation (5G) wireless networks, the perspective of very large number of simultaneous conPalabras claves:Autores:Celso de Almeida, Frison C.I., Henry Ramiro Carvajal MoraFuentes:googlescopusMC-CDMA and SCMA Performance and Complexity Comparison in Overloaded Scenarios
Conference ObjectAbstract: In 5G wireless networks, the perspective of very large number of simultaneous connections is challenPalabras claves:5G, MC-CDMA, Message Passing Algorithm, Overload Scenarios, SCMA, Sphere DecoderAutores:Celso de Almeida, Frison C.I., Henry Ramiro Carvajal MoraFuentes:scopus