2021 IEEE Colombian Conference on Communications and Computing (COLCOM)最新文献

Experimental Proof of Concept Applying Digital Predistortion to Radio Frequency Power Amplifiers 数字预失真应用于射频功率放大器的概念实验验证

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486303

Oscar Javier Montañez Sogamoso, E. A. Fernandez

引用次数: 0

Image Encryption using an Image Pattern based on Advanced Encryption Standard 基于高级加密标准的图像模式图像加密

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486298

Merisabel Ruelas Quenaya, Alejandro-Antonio Villa-Herrera, Samuel Felipe Chambi Ytusaca, Julio Enrique Yauri Ituccayasi, Yuber Velazco-Paredes, Roxana Flores-Quispe

引用次数: 0

Comparative Analysis of the main Graph Coloring Algorithms 主要图着色算法的比较分析

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486299

J. Postigo, Juan Soto-Begazo, Villarroel R. Fiorela, Gleddynuri M. Picha, Roxana Flores-Quispe, Yuber Velazco-Paredes

引用次数: 0

A methodology for signals intelligence using non-conventional techniques and software-defined radio 一种使用非常规技术和软件无线电的信号情报方法

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486297

Marco Terán, Juan Aranda, Jefferson Marin, Efraín Uchamocha, Germán Corzo-Ussa

引用次数: 2

Holistic vision of tools for transformation towards Industry 4.0 向工业4.0转型的整体工具愿景

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486296

Juliana Zúñiga Osorio, Álvaro Pachón De La Cruz

{"title":"Holistic vision of tools for transformation towards Industry 4.0","authors":"Juliana Zúñiga Osorio, Álvaro Pachón De La Cruz","doi":"10.1109/COLCOM52710.2021.9486296","DOIUrl":"https://doi.org/10.1109/COLCOM52710.2021.9486296","url":null,"abstract":"This paper identified in which way tools like maturity models, standards, reference architectures and frameworks support the transition towards Information Technology (IT) and Operational Technology (OT) integration and Industry 4.0 (I4.0) technologies adoption processes in any organization. The aim was to determine if there is a tool that integrates all the considerations and guidelines in such processes. It was a descriptive and reflexive study about these tools to understand how they can be used and how they complement each other to build a holistic roadmap towards I4.0 adoption and IT-OT integration. It was found that companies need support in both organizational and technical perspectives when facing a transformation in their manufacturing areas but there is no standardized framework that integrates the two perspectives to provide a complete roadmap. As conclusion it was stated that companies need a framework that intelligently integrates current tools and provides guidelines to properly complement them. This integration of tools must guide integration processes from both technical and organizational perspectives based on the specific needs and constraints of any company.","PeriodicalId":112859,"journal":{"name":"2021 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122665548","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

Mobile revolution: From 2G to 5G 移动革命:从2G到5G

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486300

Javier Sanchez

引用次数: 4

Linear and Non-linear Effects in Fiber Optic Transmission 光纤传输中的线性和非线性效应

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486304

Jorge Galvis Velandia, Karla Cecilia Puerto López, L. A. G. Ortiz

{"title":"Linear and Non-linear Effects in Fiber Optic Transmission","authors":"Jorge Galvis Velandia, Karla Cecilia Puerto López, L. A. G. Ortiz","doi":"10.1109/COLCOM52710.2021.9486304","DOIUrl":"https://doi.org/10.1109/COLCOM52710.2021.9486304","url":null,"abstract":"The following work presents the incidence of linear and non-linear phenomena in digital fiber optic communications through the implementation of a graphical user interface (GUI) designed in the Python multiparadigm programming environment, where the linear attenuation and dispersion phenomena are evaluated. modal considering the group velocity dispersion (GVD) and the third order dispersion (TOD), together with the non-linear phenomenon of phase self-modulation SPM. The methodology consists of selecting a single-mode fiber optic link under the G.652 standard and varying the operating conditions of the communication system based on a Mach-Zehnder (MZM) transmitter and a signal modulated by digital amplitude modulation OOK. The results show the dependence of the linear and non-linear effects in the transmission as a function of the temporal width of the input Gaussian pulse and the wavelength of the laser, when observing that the higher the wavelength the non-linear effects of the fiber affect communication, and that these effects can be mitigated by reducing the wavelength of the laser.","PeriodicalId":112859,"journal":{"name":"2021 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121039510","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: 1

An Augmented Reality based E-Learning Tool for Engineering 基于增强现实的工程电子学习工具

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486294

Cesar Hinojosa, José Julio Freire Cabrera, H. Mora, N. V. Garzón

{"title":"An Augmented Reality based E-Learning Tool for Engineering","authors":"Cesar Hinojosa, José Julio Freire Cabrera, H. Mora, N. V. Garzón","doi":"10.1109/COLCOM52710.2021.9486294","DOIUrl":"https://doi.org/10.1109/COLCOM52710.2021.9486294","url":null,"abstract":"The importance of quality virtual education has been shown recently. However, there are certain areas of knowledge for which it is difficult to replace face-to-face education with virtual education, mainly, when laboratories are required or equipment needs to be handled. Given this, augmented reality (AR) or virtual reality (VR) applications become important tools for virtual education. In this work, we propose an application based on AR that presents different elements or devices found in engineering laboratories. This application is developed using Unity and Vuforia software and can be installed on devices running Android operating system or HoloLens. As a case study, we have considered the virtualization of some elements found in telecommunications engineering laboratories. In addition, we have tested the developed application making some random people use it. Surveys were carried out to measure the application impact on learning. A link is also provided so that the application (.apk file) can be downloaded and installed. Thus, some examples may be observed by the reader employing his own Android device.","PeriodicalId":112859,"journal":{"name":"2021 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130794777","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: 1

Solving the distribution and transportation of multi-depot vehicle routing problem based on Genetic Algorithms 基于遗传算法的多车场车辆分配与运输路线问题的求解

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486301

Roxana Flores-Quispe, Yuber Velazco-Paredes

引用次数: 0

Discrete Wavelet Denoising via Kernel Based Nonlinear Component Analysis: Case Studies 基于核非线性分量分析的离散小波去噪:案例研究

2021 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2021-05-26 DOI: 10.1109/COLCOM52710.2021.9486302

Z. Ye, Hang Yin, R. Belu, H. Mohamadian, Hua Cao, Yongmao Ye

{"title":"Discrete Wavelet Denoising via Kernel Based Nonlinear Component Analysis: Case Studies","authors":"Z. Ye, Hang Yin, R. Belu, H. Mohamadian, Hua Cao, Yongmao Ye","doi":"10.1109/COLCOM52710.2021.9486302","DOIUrl":"https://doi.org/10.1109/COLCOM52710.2021.9486302","url":null,"abstract":"All complex real world problems are essentially nonlinear. Linear models are relatively simple but inaccurate to describe the nonlinear aspects of dynamic system behaviors. Denoising techniques have been broadly applied to numerous applications in the spatial domain, frequency domain, and time domain. To increase the adaptability of denoising techniques to signal processing of arbitrary nonlinear systems, kernel based nonlinear component analysis is proposed to enhance wavelet denoising. In the multilevel wavelet decomposition, the low frequency approximations and high frequency details are produced at each level. Discrete wavelet transform (DWT) will help to decompose low frequency approximations exclusively at the subsequent levels, while the wavelet packet transform decomposes both approximations and high frequency details at each level. DWT is selected for wavelet denoising in this study, where details at each level and the approximation at specified level are all subject to simplification using nonlinear component analysis. Case studies of typical nonlinear denoising problems in various domains are conducted. The results manifest strong feasibility and adaptability across diverse denoising problems of nonlinear systems.","PeriodicalId":112859,"journal":{"name":"2021 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121664583","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