Browsing by Author "Velez Varela, Fernando"
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Item Conceptos y Referencias en Teoría de la Información y las Telecomunicaciones. Aspectos Digitales(Editorial Universidad Santiago de Cali, 2025-07-21) Velez Varela, Fernando; Dussán Clavijo, Ciro Antonio; Santafé Ramón, Yesid Eugenio;Item Design, implementation, and testing of an energy consumption management system applied in Internet protocol data networks(2021) Velez Varela, Fernando; Marin Lozano, Diego Fernando; Sarria Paja, MiltonTo model the power measurement conditions of an energy system, an initial reference should be made within the specification of a generic energy consumption (EC) model. This EC model is based on the energy state of a system comprising goods, networks, and services, which supports energy management capabilities. Therefore, a prototype tool to record power consumption (PC) at the device level is designed and implemented, thereby enabling devise use optimization. The core is to collect energy-related information in internet protocol networks that support the simple network management protocol, in addition to the standard proposed in RFC-7460, and the green information technology. The information obtained is related to the energy consumed by devices that support those technologies. Then, the information is processed to evaluate different PC characteristics of the network. This research impacts the knowledge gap of information system management, where the objective sought is to establish metrics and methodological schemes for obtaining data regarding measurable behaviors in the EC field.Item Determinación técnica de los mapas de cobertura de las redes IEEE 802.11 dentro de los bloques 1,2,4, y 6 de la universidad Santiago de Cali, sede pampalinda(Universidad Santiago de Cali, 2020) García portilla, Carlos Jair; Velez Varela, FernandoThe Santiago de Cali University has a wireless WI-FI®-LAN communication network system, which is a mixed combination of two types of networks: WI-FI® , which is a wireless technology that allows the connection of electronic devices, LAN (area networks local) that connects devices via data lines or telephone lines. The backbone network interconnection or backbone connections is composed of a large number of switches between the 7 buildings that make up the Santiago de Cali University, this connection has a speed of 10Gbps per second and between classrooms has a speed of 1Gbps per second to the consumption of users who have terminal devices (cell phones, computers), their accessibility (AP) has an estimate of 300 Ap to be used by approximately 3500 to 4000 students a day and approximately 100 administrative. The wireless communication network of the Santiago de Cali University, is within the minimum parameters established by the IEEE standards (Institute of Electrical and Electronic Engineering), to offer the connectivity service to the educational community, but the communication offer presents problems which are evidenced in the repeated complaints of the users such as: connection difficulty, data transmission, coverage. Therefore, to give a general approach of how the state of the wireless communication network is, a “Technical Determination of the Coverage Maps of the IEEE 802.11 Networks within blocks 1,2,4, and 6 of the Santiago de Cali University, Pampalinda Headquarters.” was made through the implementation of the Inssider Home software Ekahau HeatMapper that allowed the mapping of the coverage of the electromagnetic spectrum that is used to evaluate in graphs the internet band that is analyzed and the flow of data packets. The conclusions obtained showed that there are problems in the connectivity of the devices and in the data traffic that cause a decrease in the signal and delay in the transfer of data, possibly due to the fact that there is an Access point that may be damaged, badly located or excessive of networks, the conjectures are many and it is expected that there will be continuity in the investigation.Item Diseño de una guía teórica y práctica sobre redes definidas por software (SDN) para la Universidad Santiago de Cali(Universidad Santiago de Cali, 2019) Cardona Aguirre, Juan Mateo; Velez Varela, FernandoSoftware-defined networking they are a set of communication techniques that have been developed for the construction of a network architecture that allows you to divide the control and the data for the production of programmable networks flexible and automated to increase its capabilities, independent of the physical infrastructure. Since the SDN are still at the stage of research and development, the best current option to experience its functionalities is to carry out a simulation of the network that you want to implement, through an emulator called Mininet, this being a software that creates a virtual network set to actual parameters. Engineering of the Universidad Santiago de Cali programs do not have in their curricula with topics where consideration the SDN, it therefore intends to develop a theoretical and practical guide to software defined networking that serves as a basis for future practices that are carried out. That way an installation and configuration guide accurate about Mininet explaining the development for establishing the initial connections to simulate, in addition to a document where the current theoretical framework related to the SDN is taught and ends with the practice of some generals of the Mininet commands, and CLI command line administration of switchs OpenFlowItem Integración e implementación de redes convergentes para el soporte de IoT en Smart Cities(Universidad Santiago de Cali, 2019) Palacios Tovar, Sebastián; Velez Varela, FernandoThis article is the conceptual achievement in IoT, Machine learning and artificial intelligence, which bases the current integration and implementation of convergent networks for the support of current technologies, supported by hardware and software elements applied in Smart Cities models. These seek to determine sustainability margins through improvement processes related to infrastructure, innovation and technology, to reduce energy consumption and CO2 emissions. For this, it is intended to use the Digital Network Architecture® (DNA®) model of converged networks to support IoT references in Smart cities and, in turn, establish which network integration process is more efficient for use in some parameters of these. The arrival of new technologies such as 5G and the growth of the Internet of Things (IoT) have forced telecommunications operators to converge into a single network to maximize the use of their resources. Convergent networks are constantly developing, because there are increasing demands for connectivity and data transmission.