Search Results - "Alencar, Marcelo Sampaio de"

Voice production model based on phonation biophysics by Rocha, Raissa Bezerra, José Lira de Queiroz, Wamberto, Sampaio de Alencar, Marcelo

“…This paper presents a proposal to a source-filter theory of voice production, more precisely related to voiced sounds. It is a proposal of a model to generate…”
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LoRaWAN Gateway Placement in Smart Agriculture: An Analysis of Clustering Algorithms and Performance Metrics by Correia, Felipe Pinheiro, Silva, Samara Ruthielle da, Carvalho, Fabricio Braga Soares de, Alencar, Marcelo Sampaio de, Assis, Karcius Day Rosario, Bacurau, Rodrigo Moreira

“…The use of Wireless Sensor Networks (WSN) in smart agriculture has emerged in recent years. LoRaWAN (Long Range Wide Area Networks) is widely recognized as one…”
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Propagation Analysis for Wireless Sensor Networks Applied to Viticulture by Assis, Mauro S., Lopes, Waslon Terllizzie A., Alencar, Marcelo Sampaio de, Correia, Felipe Pinheiro, Leal, Brauliro Gonçalves

“…Wireless sensor networks have been proposed as a solution to obtain soil and environment information in large distributed areas. The main economic activity of…”
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Loss probability in priority limited processing queueing system by Yashina, Marina, Tatashev, Alexander, Alencar, Marcelo Sampaio

“…In this paper, a queueing system with a preemptive priority limited processor sharing system with some versions of the discipline is considered. The problem of…”
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Advances in Radar Technologies by Costanzo, Sandra, Rocha, Alvaro, de Alencar, Marcelo Sampaio

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Disparity weighting applied to full-reference and no reference stereoscopic image quality assessment by de Miranda Cardoso, Jose Vinicius, Miranda Regis, Carlos Danilo, Sampaio de Alencar, Marcelo

“…This paper presents an evaluation of performance of the disparity weighting technique when it is applied to stereoscopic image quality assessment in full…”
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On the performance of disparity-based weighting technique applied to 3D image quality assessment by de Miranda Cardoso, Jose Vinicius, Danilo Miranda Regis, Carlos, Sampaio de Alencar, Marcelo

“…This papers describes the performance of objective algorithms when they are applied for stereosocopic image quality assessment. Specifically, the authors…”
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IP traffic classifiers applied to DiffServ networks by Taynnan Barros, Michael, Gomes, Reinaldo, Sampaio de Alencar, Marcelo, da Costa, Anderson F. B. F.

“…The future Internet scenario consists of a higher number of users and applications, which demand more resources from the communication infrastructure…”
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Objective estimation of 3D video quality: A disparity-based weighting strategy by Miranda Regis, Carlos Danilo, de Miranda Cardoso, Jose Vinicius, de Pontes Oliveira, Italo, Sampaio de Alencar, Marcelo

“…This paper presents new results on the objective evaluation of stereoscopic video quality. A balance between the scores provided by classical objective…”
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Coverage Probability Analysis of a RIS-Assisted THz Indoor System Based on Ray Tracing Simulations by Da Silva, Higo Thaian Pereira, De Alencar, Marcelo Sampaio, Lira Queiroz, Wamberto Jose, Silva, Hugerles Sales

“…The integration of reflective intelligent surfaces (RISs) with communication systems operating in the Terahertz (THz) range, spanning from 0.1 THz to 10 THz,…”
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Técnicas de diversidade para enlaces ópticos no espaço livre sujeitos à turbulência atmosférica: Uma perspectiva teórica by Vanessa Galdino Mendes de Farias, Paulo Ribeiro Lins Júnior, Marcelo Sampaio de Alencar

“…Esse artigo apresenta uma revisão das técnicas de diversidade aplicadas para comunicação óptica no espaço livre  na presença de turbulência. Para isto são…”
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SQUALES: A Qt-based application for full-reference objective stereoscopic video quality measurement by de Miranda Cardoso, Jose Vinicius, Regis, Carlos Danilo Miranda, de Alencar, Marcelo Sampaio

“…This paper describes a Qt-based C++ application for full-reference stereoscopic video quality assessment. The application is platform independent and provides…”
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Spectrum sensing based on normality test by Silva Rocha, Jeronimo, de Farias, Jose Ewerton P., Sampaio de Alencar, Marcelo

“…This paper presents an analysis of spectrum sensing to determine if a signal, measured by a cognitive user in an AWGN channel, is a valid one, from the primary…”
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Design of Objective Video Quality Metrics Using Spatial and Temporal Informations by Danilo de Miranda Regis, Carlos, de Pontes Oliveira, Italo, Vinicius de Miranda Cardoso, Jose, Sampaio de Alencar, Marcelo

“…Digital videos are subject to several types of distortions, which may occur during the processes of acquisition, processing, compression, storage and…”
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Cooperative Space-Time Block Codes for Wireless Video Sensor Networks by Sousa, Marcelo Portela, Kumar, Ajey, Lopes, Rafael F., Lopes, Waslon T. A., de Alencar, Marcelo Sampaio

“…Wireless video sensor networks (WVSNs) are gaining popularity due to numerous potential applications such as video surveillance, environmental and habitat…”
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Spatial Correlation for DoA Characterization Using Von Mises, Cosine, and Gaussian Distributions by Queiroz, Wamberto J. L., Madeiro, Francisco, Lopes, Waslon Terllizzie A., Alencar, Marcelo Sampaio de

“…This paper presents mathematical expressions for the spatial correlation between elements of linear and circular antenna arrays, considering cosine, Gaussian,…”
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Capacity Heat Maps for Millimeter Waves by Sobreira de Carvalho, Gabriela, Sampaio de Alencar, Marcelo, Bezerra Rocha, Raissa

“…This paper examines the capacity of millimeter waves systems which appear as an attractive alternative band for the next generation of mobile communications…”
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Perda média de penetração: resultados práticos para sistemas de comunicação sem fio by Jefferson Costa e Silva, Alfrêdo Gomes Neto, Joabson Nogueira de Carvalho, Marcelo Sampaio de Alencar

“…A perda média de penetração, PMP, é um parâmetro de propagação muito útil ao se estimar o nível de potência após um obstáculo…”
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Cell-Free at Millimeter Wave Frequency Simulation Using the Ray Tracing Method by da Silva, Higo Thaian Pereira, Duarte, Rafael Moura, de Alencar, Marcelo Sampaio, Queiroz, Wamberto Jose Lira

“…In cell-free (CF) networks, a large number of distributed access points (APs) provides communication to a small number of users using the same time-frequency…”
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Medição de intensidade de campo em ambiente predial by Jefferson Costa e Silva, Alfrêdo Gomes Neto, Marcos Eduardo do Prado Villarroel Zurita, Kécio Patrick Delgado Ferreira, Marcelo Sampaio de Alencar

“…Devido à crescente demanda pelos sistemas de comunicação móveis sem fio, as operadoras de comunicações móveis estão procurando reduzir o tamanho de suas…”
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