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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 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:googlescopusCDMA ad hoc networks in multipath fading channels
Conference ObjectAbstract: This work analyses the effects of multipath diversity on the performance of wireless code division mPalabras claves:Autores:Celso de Almeida, Filho R.B., Ramos R.P., Rêgo M.G.Fuentes: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:scopusEvaluation of the effects of co-channel interference on the bit error rate of wireless networks with error correcting codes in fading channels
Conference ObjectAbstract: This paper presents a performance analysis of wireless networks using error correcting codes on chanPalabras claves:BER, co-channel interference, Rayleigh Fading, TCM, TTCMAutores:Carlos Daniel Altamirano Carrillo, Celso de Almeida, Daniel Altamirano C.Fuentes:googlescopusDynamic slot scheduling schemes for TDD DS-CDMA systems with 2D rake receivers
Conference ObjectAbstract: In this paper1 we show that dynamic time slot scheduling algorithms can improve significantly the pePalabras claves:Autores:Celso de Almeida, Hoefel R.Fuentes:scopusHyper-power zero forcing detector for massive MIMO systems
ArticleAbstract: In massive multiple-input multiple-output (MIMO) systems when the number of base station antennas isPalabras claves:massive MIMO, Matrix inversion, Newton–Schultz iteration, Zero forcingAutores:Celso de Almeida, Minango J.Fuentes: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