Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Henry Carvajal"'
Publikováno v:
IEEE Access, Vol 12, Pp 122213-122228 (2024)
This paper introduces a streamlined design that includes a broadband directional coupler, a set of three-port union-T power dividers, and several microstrip transitions. These components leverage substrate-integrated waveguide (SIW) technology, opera
Externí odkaz:
https://doaj.org/article/d4f7b2660f034f11bca7ed4f4d7759bc
Autor:
Ana M. Zambrano, Mateo N. Salvador, Felipe Grijalva, Henry Carvajal Mora, Nathaly Orozco Garzón
Publikováno v:
Technologies, Vol 12, Iss 8, p 133 (2024)
Computer Algebra Systems (CAS) currently lack an effective auditory representation, with most existing solutions relying on screen readers that provide limited functionality. This limitation prevents blind users from fully understanding and interpret
Externí odkaz:
https://doaj.org/article/61e4b6267c634fb98f0478cc5e88b78f
Publikováno v:
Energies, Vol 17, Iss 14, p 3500 (2024)
Ensuring a balance between supply and demand is critical within electricity grids, requiring a supply composition that guarantees consistent service provision in the short and medium term. Between 2008 and 2017, Ecuador’s electricity generation cap
Externí odkaz:
https://doaj.org/article/e0efab1123054e1aa8141dd845648151
Autor:
Ana M. Zambrano, Danilo I. Pilacuan, Mateo N. Salvador, Felipe Grijalva, Nathaly Orozco Garzon, Henry Carvajal Mora
Publikováno v:
IEEE Access, Vol 11, Pp 71766-71776 (2023)
Visually impaired individuals face challenges in pursuing higher education, particularly in technical courses related to engineering. The lack of specialized tools and resources that allow for proper development in academic activities is a significan
Externí odkaz:
https://doaj.org/article/7e65372162fc487d9817bf3ccc74bdfc
Autor:
Juan Carlos Rodriguez, Felipe Grijalva, Marcelo García, Diana Estefanía Chérrez Barragán, Byron Alejandro Acuña Acurio, Henry Carvajal
Publikováno v:
Engineering Proceedings, Vol 47, Iss 1, p 7 (2023)
The modernization of the current electric power grid into a smart grid requires the integration of advanced instrumentation, automation, and communication technologies to optimize efficiency, safety, and reliability. In traditional power grids, commu
Externí odkaz:
https://doaj.org/article/042760d0ffbd4d25b8023c1907e78072
Publikováno v:
Engineering Proceedings, Vol 47, Iss 1, p 24 (2023)
This work presents an overview of fifth-generation (5G) technology, its key functionalities, and its applications. Then, we introduce the topic of 5G radio network planning, making analysis and design methods for coverage and capacity determinations,
Externí odkaz:
https://doaj.org/article/a486a3373d5b415cb13927bd2263b4d2
Publikováno v:
Engineering Proceedings, Vol 47, Iss 1, p 2 (2023)
The proposed work offers a concise review of the application of machine learning (ML) to cellular network handovers (HO) via the Systematic Mapping Study (SMS) methodology, emphasizing the problem areas and requirements. The key points include the pa
Externí odkaz:
https://doaj.org/article/c9044a51def34fd9baee040b297f21d2
Publikováno v:
IEEE Access, Vol 10, Pp 26974-26984 (2022)
In this paper, we evaluate the performance of equal-gain-combining (EGC) receivers operating in Rayleigh fading channels in terms of the outage probability (OP) and the average symbol error rate (ASER). For this, we first derive novel, improved, fast
Externí odkaz:
https://doaj.org/article/9c4b717cd8724d2b823eab09e2140f92
Publikováno v:
Sensors, Vol 23, Iss 6, p 3174 (2023)
Relay-assisted wireless communications, where both the relay and the final destiny employ diversity-combining techniques, represent a compelling strategy for improving the signal-to-noise ratio (SNR) for mobile terminals, mainly at millimeter-wave (m
Externí odkaz:
https://doaj.org/article/e7b3d1865b2e4f01b8cc8319aa735168
Autor:
Nathaly Orozco Garzon, Henry Carvajal Mora, Fernando Almeida Garcia, Carlos Daniel Altamirano
Publikováno v:
IEEE Access, Vol 9, Pp 49267-49280 (2021)
Opportunistic systems take advantage of the wireless communication channel random behavior, since transmission is made only when fading amplitude is above a threshold value, which is calculated based on a transmission probability. This type of transm
Externí odkaz:
https://doaj.org/article/84a51f6426a84d51a9cebe7cda0acd0a