Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por palabra clave "Cognitive radio networks"

Mostrando ítems 1-6 de 6

Approximate Analysis of Cognitive Radio Systems Using Time-Scale Separation and Its Accuracy

Martínez Bauset, Jorge; Pla, Vicent; Vidal Catalá, José Ramón; Guijarro Coloma, Luis Alejandro (Institute of Electrical and Electronics Engineers (IEEE), 2013-01)

We model a cognitive radio system as a quasi-birth-death (QBD) process and determine its performance parameters. We also model the system at the quasi-stationary limiting regime. We show that this regime defines the ...
Channel Assembling with Priority-based Queues in Cognitive Radio Networks: Strategies and Performance Evaluation

Balapuwaduge, Indika A. M.; Jiao, Lei; Pla, Vicent; Li, Frank Y. (Institute of Electrical and Electronics Engineers (IEEE), 2014-02)

[EN] With the implementation of channel assembling (CA) techniques, higher data rate can be achieved for secondary users in multi-channel cognitive radio networks. Recent studies which are based on loss systems show that ...
Design and Performance Analysis of Access Control Mechanisms for Massive Machine-to-Machine Communications in Wireless Cellular Networks

Tello Oquendo, Luis Patricio (Universitat Politècnica de València, 2018-09-10)

En la actualidad, la Internet de las Cosas (Internet of Things, IoT) es una tecnología esencial para la próxima generación de sistemas inalámbricos. La conectividad es la base de IoT, y el tipo de acceso requerido dependerá ...
Dynamic Spectrum Reservation for CR Networks in the Presence of Channel Failures: Channel Allocation and Reliability Analysis

Balapuwaduge, Indika A. M.; Li, Frank; Pla, Vicent (Institute of Electrical and Electronics Engineers, 2018)

[EN] Providing channel access opportunities for new service requests and guaranteeing continuous connections for ongoing flows until service completion are two challenges for service provisioning in wireless networks. ...
Performance analysis of wireless networks based on time-scale separation: A new iterative method

Tello Oquendo, Luis Patricio; Pla, Vicent; Martínez Bauset, Jorge; Casares Giner, Vicente (Elsevier, 2016-07-15)

The complexity of modern communication networks makes the solution of the Markov chains that model their traffic dynamics, and therefore, the determination of their performance parameters, computationally costly. However, ...
Two-Stage Adaptive Relay Selection and Power Allocation Strategy for Cooperative CR-NOMA Networks in Underlay Spectrum Sharing

Li, Suoping; Liang, Wenwu; Pla, Vicent; Yang, Nana; Yang, Sa (MDPI AG, 2021-11-06)

[EN] In this paper, we consider a novel cooperative underlay cognitive radio network based on non-orthogonal multiple access (CR-NOMA) with adaptive relay selection and power allocation. In secondary networks, dedicated ...