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2018 IEEE Colombian Conference on Communications and Computing (COLCOM)最新文献

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Impact of Control Mechanisms Containment in optical burst switching Distributed Networks 控制机制对光突发交换分布式网络的影响
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466705
K. Guevara-Ortiz, S. Bermúdez-Quintero, A. Puentes, N. Villabona-Mujica, L. B. Rosero, D. Suarez-Rivero, S. Villamizar-Delgado, J. Ortiz-Aguilar
{"title":"Impact of Control Mechanisms Containment in optical burst switching Distributed Networks","authors":"K. Guevara-Ortiz, S. Bermúdez-Quintero, A. Puentes, N. Villabona-Mujica, L. B. Rosero, D. Suarez-Rivero, S. Villamizar-Delgado, J. Ortiz-Aguilar","doi":"10.1109/COLCOMCON.2018.8466705","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466705","url":null,"abstract":"Undoubtedly, the optical fiber is one of the key technologies of switching which receive greater attention optical burst switching (OBS), allowing to improve the system’s resources and manages information more efficiently than other types of switching like optical packet switching (OPS) and Optical Circuit Switch (OCS). However; as in all developing system, difficulties arise at the time of application, one of the main problems affecting these networks is congestion that occurs in the nodes of the same. It is for this reason, that it is necessary to implement mechanisms for control of containment that can avoid the congestion in the system. This article presents control of containment mechanisms analysis by wavelength change, deflection of route and fiber delay lines in a distributed network obs to improve the communications of the future.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133741113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Admission Control Implementation for QoS Performance Evaluation over SDWN 基于SDWN的QoS性能评估的准入控制实现
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466339
Alvaro Jiménez, J. F. Botero, Juan P. Urrea
{"title":"Admission Control Implementation for QoS Performance Evaluation over SDWN","authors":"Alvaro Jiménez, J. F. Botero, Juan P. Urrea","doi":"10.1109/COLCOMCON.2018.8466339","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466339","url":null,"abstract":"Local area networks based on the IEEE 802.11 standard represent the largest deployment of wireless network technology worldwide, and such networks have accelerated the growth of multimedia applications. This type of content requires special settings to ensure quality of service, specially in the case of real-time video streaming. Currently, the state of the art mostly focuses on solving the QoS problem over traditional IEEE 802.11 networks, but few works try to evaluate the performance of QoS mechanisms over software-defined WLAN network scenarios. The Software Defined Networking (SDN) architecture helps to improve, simplify, and program the network management according to specific needs, making the design and deployment of new control policies easier and faster to implement. This paper presents an analysis of throughput and delay metrics behavior of QoS mechanisms from IEEE 802.11 standard such as admission control, implemented over a emulation scenario based on NS-3 integrated with SDN.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131128540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Evaluation of the voice quality and QoS in real calls using different voice over IP codecs 使用不同IP语音编解码器对真实通话的语音质量和QoS进行评估
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466727
Martín Ortega Ortega, Gustavo Chafla Altamirano, M. Abad
{"title":"Evaluation of the voice quality and QoS in real calls using different voice over IP codecs","authors":"Martín Ortega Ortega, Gustavo Chafla Altamirano, M. Abad","doi":"10.1109/COLCOMCON.2018.8466727","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466727","url":null,"abstract":"To have an excellent voice quality in VoIP networks implies to generate studies based on the perception of the user and on the QoS analysis in the calls. In this research, it was carried out the assessment of the voice quality in the calls by means of the MOS, and the evaluation of the QoS through the verification of the recommended theoretical values for the technical parameters latency, jitter and packet loss. For this, real VoIP calls were performed in different case scenarios with softphone applications installed in smartphones. In the tests, eight voice codecs were used in order to determine which one allows to have the best voice quality and a good QoS during the calls performed. The comparisons of the voice codecs demonstrate that the codec iLBC-13.33 reported the best results for this case study.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115432854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Análisis de Desempeño Computacional del Procesamiento Distribuido de una Implementación de Bolsa de Palabras en Apache SparkTM Apache SparkTM中字袋实现分布式处理的计算性能分析
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466725
Yerson Ferney Porras García, Roger Calderón-Moreno, Á. Cruz-Roa
{"title":"Análisis de Desempeño Computacional del Procesamiento Distribuido de una Implementación de Bolsa de Palabras en Apache SparkTM","authors":"Yerson Ferney Porras García, Roger Calderón-Moreno, Á. Cruz-Roa","doi":"10.1109/COLCOMCON.2018.8466725","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466725","url":null,"abstract":"Este trabajo presenta un análisis comparativo dela implementación de una representación de Bolsa de Palabras (Bag of Words- $BoW$) para el procesamiento distribuido de una colección de documentos de texto en la plataforma de proce-samiento distribuido Apache $mathrm {S}mathrm {p}mathrm {a}mathrm {r}mathrm {k}^{mathrm {T}mathrm {M}}$ La implementación $mathrm {B}mathrm {o}mathrm {W}$, integró tecnologías para el almacenamiento y proce-samiento distribuido como Apache $mathrm {H}mathrm {a}mathrm {d}mathrm {o}mathrm {o}mathrm {p}^{mathrm {T}mathrm {M}}$, exactamente Hadoop Distributed File System (HDFS); y Apache $mathrm {S}mathrm {p}mathrm {a}mathrm {r}mathrm {k}^{mathrm {T}mathrm {M}}$, respectivamente. El clúster de computación se configuró con 17 equipos conectados entre sí, en los cuales se almacenó un conjunto de datos de 500 archivos de texto plano. Las eta-pas del algoritmo $mathrm {B}mathrm {o}mathrm {W}$ fueron implementadas modularmente en Apache $mathrm {S}mathrm {p}mathrm {a}mathrm {r}mathrm {k}^{mathrm {T}mathrm {M}}$ Los resultados obtenidos demostraron comportamientos positivos en términos de SpeedUp llegando a tener hasta un aumento proporcional de 4x al usar los 16 nodos del clúster, siendo la cantidad límite de nodos esclavos en los diferentes escenarios de experimentación permitiendo comparar un comportamiento con el SpeedUp teórico señalando un grado de paralelización máximo del 80% en dicho punto sugeriendo la ventaja de la computación distribuida para el procesamiento masivo de datos (Big Data). Igualmente, la experimentación permitió identificar puntos a mejorar para profundizar en posibles causas, mejoras y trabajo futuro para su aplicación en análisis de datos (Data Analytics) como apoyo a la investigación, formación y la industria.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114199742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Guidelines to Implement Video Dataset to Assess Video Quality 实施视频数据集评估视频质量的指南
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466724
David Acosta, J. C. Cuéllar, J. Arciniegas
{"title":"Guidelines to Implement Video Dataset to Assess Video Quality","authors":"David Acosta, J. C. Cuéllar, J. Arciniegas","doi":"10.1109/COLCOMCON.2018.8466724","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466724","url":null,"abstract":"This article presents a novel video dataset featuring subjective evaluations, for analyzing performance of models predicting video quality of experience. Dataset Videos were distorted by modifying three quality of service parameters upon transmission over an emulated IP network environment. We obtained 60 distorted videos from 4 original source videos. The article presents criteria for selection of reference videos, the parameters for the subjective evaluation experiment, and the statistical treatment of results. Results evidence the impact of quality of service parameters in the observer-perceived quality. The dataset is publicly available upon request.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117240928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
On the Design of Active LC Oscillators Using Small-Signal Model Network Analysis 基于小信号模型网络分析的有源LC振荡器设计
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466732
Esteban Proaño, Manuel S. Navarro, Alberto Sánchez, D. Benítez
{"title":"On the Design of Active LC Oscillators Using Small-Signal Model Network Analysis","authors":"Esteban Proaño, Manuel S. Navarro, Alberto Sánchez, D. Benítez","doi":"10.1109/COLCOMCON.2018.8466732","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466732","url":null,"abstract":"This work presents a simplified method to find the oscillation conditions for active LC networks. The method relies on finding the solution of the admittance or impedance determinantal equation of the small signal equivalent network model. The study presents four examples of the use of the method, and in particular it develops the conditions for a differential oscillator which is not a commonly discussed network in the literature. Results are verified by simulation for all the topologies and an experimental setup for a differential oscillator designed to operate at 30 MHz.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123789459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
BC-MED: Plataforma de Registros Médicos Electrónicos Sobre Tecnología Blockchain BC-MED:区块链技术电子病历平台
2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466733
O. Gutiérrez, Jeffreys J. Saavedra, Pedro M. Wightman, Augusto Salazar
{"title":"BC-MED: Plataforma de Registros Médicos Electrónicos Sobre Tecnología Blockchain","authors":"O. Gutiérrez, Jeffreys J. Saavedra, Pedro M. Wightman, Augusto Salazar","doi":"10.1109/COLCOMCON.2018.8466733","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466733","url":null,"abstract":"Contar con una historia clínica completa de un paciente, en cualquier momento, constituye una herramienta valiosa que permite a los actores del sistema de salud, tales como médicos, enfermeras, farmaceutas, laboratoristas e incluso al mismo paciente, tomar mejores decisiones sobre los tratamientos médicos a seguir al contar con todos los antecedentes clínicos bien documentados. Sin embargo, en la actualidad solo se cuenta con un sistema fragmentado, no estandarizado, no interconectado, que Iimita el acceso a esta información de manera integral. En los últimos tiempos se ha venido trabajando mecanismos para Iograr que esta centralización sea una realidad. Un ejemplo de ello es la Blockchain, que surge una tecnología que permitiría la construcción de un sistema con información centralizada, pero no dependiente de una única instancia, por su carácter participativo. Esta característica serviría para implementar sistemas EMR (Electronic Medical Records) flexible, robusto y seguro para almacenar la información médica de los pacientes. Este trabajo presenta el diseño de la plataforma BD-MED para el uso de redes blockchain para el acceso, registro y almacenamiento del historial clínico de los pacientes, incluso en escenarios con fallas de conectividad.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"322 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123237143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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