Buscar
Mostrando ítems 21-30 de 342
Detección de emulación de usuario primario con localización dinámica en la red de radio cognitiva móvil mediante diseño cross-layer
(Bogotá - Ingeniería - Doctorado en Ingeniería - Sistemas y ComputaciónUniversidad Nacional de Colombia - Sede Bogotá, 2020)
In the design of Cognitive Radio Mobile Networks, the detection of attacks such as primary user emulation is essential as it avoids secondary users interfering with primary users of the cellular mobile network. In addition, ...
Classificação Automática de Modulação Digital com uso de Correntropia para Ambientes de Rádio Cognitivo
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia ElétricaAutomação e Sistemas; Engenharia de Computação; Telecomunicações, 2012-12-14)
Modern wireless systems employ adaptive techniques to provide high throughput
while observing desired coverage, Quality of Service (QoS) and capacity. An alternative
to further enhance data rate is to apply cognitive radio ...
Spectrum Distribution in Cognitive Radio: Error Correcting Codes Perspective
(Hindawi Publishing Corporation, 2014-01-01)
Cognitive radio is a growing zone in wireless communication which offers an opening in complete utilization of incompetently used frequency spectrum: deprived of crafting interference for the primary (authorized) user, the ...
Joint Power, Original Bandwidth, and Detected Hole Bandwidth Allocation for Multi-Homing Heterogeneous Networks Based on Cognitive Radio
(Institute of Electrical and Electronics Engineers Inc., 2019)
In this paper, we investigate a joint resource allocation problem based on cognitive radio (CR) techniques for user equipment with multi-homing capabilities. We consider a heterogeneous wireless medium where users in ...
Monitoreo del Uso del Espctro Radioeléctrico Basado en la Técnología de Radio Cognitiva - (Cognitive Radio).
Uno de los problemas que más aqueja a las redes y sistemas inalámbricos es la falta de suficiente espectro radioeléctrico. Por este motivo, es importante plantear métodos para gestionar este recurso de una forma más óptima. ...
Constructing a Statistical Behavior Management Scheme for Aggregate Interference in Cognitive Radio Sensor Networks
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2020-06-15)
This research work aims to provide design recommendations to manage aggregate interference generated in cognitive radio sensor networks to account for different scenarios. Previous studies have analyzed the statistical ...
Implementación de escenarios de simulación mediante técnicas de modulación y análisis espectral en sistemas WRAN en radios cognitivas.
(Universidad Católica de Santiago de Guayaquil, 2021)
Cognitive radio virtual networks environment: definition, modeling and mapping of secondary virtual networks onto wireless substrate
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Ciencia da Informacao, 2016)
A Locally Optimal Soft Linear-Quadratic Scheme for CR Systems in Shadowing Environments
(Institute of Electrical and Electronics Engineers Inc., 2016-06)
In this letter, we analyze the problem of detecting spectrum holes in cognitive radio systems under the Neyman-Pearson scenario. We consider that a group of unlicensed users use noncoherent energy detectors to sense the ...