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2012 IEEE Latin-America Conference on Communications, LATINCOM 2012 - Conference Proceedings(1)
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scopus(9)
An improved secure image transmission technique via mosaic images by nearly reversible color transformations
Conference ObjectAbstract: Current multimedia communication systems seek to transmit images supporting contents by the data strPalabras claves:Color transformation, Image transmission, Mosaic image, Statistical simplificationAutores:Álvarez J.L.R., Freddy Acosta-Buenaño, Mora-Jimnez I., NELSON BOLIVAR BENAVIDES CIFUENTESFuentes:googlescopusData amount reduction in mosaic image transmission techniques for digital interactive television applications
ArticleAbstract: Several images are used as a part of the interactive data in the Nipo-Brazilian digital TV system thPalabras claves:Digital terrestrial television, image entropy, image selection, Interactive Applications, Mosaic image, nearly reversible color transformationsAutores:Freddy Acosta-Buenaño, Jose Luis Rojo-Álvarez, Mora-Jimnez I., NELSON BOLIVAR BENAVIDES CIFUENTESFuentes:googlescopusDesign and Implementation of a EWBS Gateway over an IP Telephone Network
Conference ObjectAbstract: Being part of the so-called “Pacific Ring of Fire” and “Belt of Low Pressure,” Ecuador is located inPalabras claves:Common alert protocol, EWBS, Risk management, Spatial data infrastructureAutores:Freddy Acosta-Buenaño, Nancy Paredes, NELSON BOLIVAR BENAVIDES CIFUENTES, Sambrano Y.Fuentes:googlescopusPerformance analysis of VoIP services over WiFi-based systems
Conference ObjectAbstract: In this paper we present a performance analysis about the capabilities of Alix board for handling VoPalabras claves:Alix, asterisk, IAX, IEEE 802.11, SIP, SIPP, VoIP, WiFiAutores:David Villacis, Freddy Acosta-Buenaño, Roman Lara-CuevaFuentes:googlescopusPerformance analysis on return channel for interactive digital TV ISDB-Tb system
Conference ObjectAbstract: This article describes the analysis of return channel for digital terrestrial television (DTT), throPalabras claves:Autores:Ana C. Paredes, Freddy Acosta-Buenaño, Nancy M. Tonguino, NELSON BOLIVAR BENAVIDES CIFUENTESFuentes:googlescopusPerformance evaluation of an Asterisk PBX prototype Beaglebone Black based
Conference ObjectAbstract: This paper presents the performance evaluation of an Asterisk IP telephone exchange, implemented onPalabras claves:asterisk, beaglebone, VoIPAutores:Freddy Acosta-Buenaño, Roman Lara-Cueva, Santiago PazmiñoFuentes:googlescopusPrototype of a Centralized Alert and Emergency System for Digital Terrestrial Television in Ecuador
Conference ObjectAbstract: Latin America is living the migration towards the digital terrestrial television (DTT) with the ISDBPalabras claves:Common alert protocol, EWBS, Risk management, Spatial data infrastructureAutores:Diego Villamarín, Fabián Santander, Freddy Acosta-Buenaño, NELSON BOLIVAR BENAVIDES CIFUENTES, Rosario Achig, Villie MorochoFuentes:googlescopusOn the design, simulation and fabrication of multiple section coupled-line directional couplers at C-band using microstrip technology
Conference ObjectAbstract: This paper presents the design of coupled-line directional couplers using microstrip technology. ItPalabras claves:C-Band, Coupler, Coupling factor C, Effective electric length, Linecalc, Microstrip, S parametersAutores:Cristian Fiallos-Silva, Diego S. Benitez, Freddy Acosta-Buenaño, Rául Vinicio Haro-BáezFuentes:googlescopusTransport stream generator and player for digital terrestrial television ISDB-Tb
Conference ObjectAbstract: The current paper introduces software, named Celina, that integrates the three ISDB-Tb standard funcPalabras claves:Autores:Freddy Acosta-Buenaño, Nancy Paredes, NELSON BOLIVAR BENAVIDES CIFUENTES, Roberto MenaFuentes:googlescopus