Listar por autor "Castillo-Vázquez, Beatriz"
Mostrando ítems 1-19 de 19
-
Adaptive selective relaying in cooperative free-space optical systems over atmospheric turbulence and misalignment fading channels
Boluda-Ruiz, Rubén
; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen (Optica Publishing Group, 2014)
In this paper, a novel adaptive cooperative protocol with multiple relays using detect-and-forward (DF) over atmospheric turbulence channels with pointing errors is proposed. The adaptive DF cooperative protocol here ... -
Análisis de la capacidad ergódica en sistemas cooperativos de comunicaciones ópticas no guiadas
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen (2015-09-14)
Ergodic capacity for the bit-detect-and-forward (BDF) cooperative protocol over gamma-gamma fading channels with pointing errors is here analyzed. Novel closed-form approximate ergodic capacity expression is here obtained ... -
Análisis de técnicas de diversidad espacial adaptadas al canal óptico submarino en presencia de dispersión y turbulencia oceánica.
Salcedo-Serrano, Pedro; Garrido-Balsells, José María; García-Zambrana, Antonio; Puerta-Notario, Antonio; Castillo-Vázquez, Beatriz; Boluda-Ruiz, Rubén[et al.] (2023)
High absorption and scattering of the seawater impose new challenges in the design of novel underwater optical wireless transceivers. This paper presents a comprehensive comparison in terms of BER of Multiple-Input/Single-Output ... -
Analysis of complex amplitude modulation with checkerboard-type holograms in phase-only modulators.
Puerta-Notario, Antonio; Schröder Antúnez, Lucía de Fátima; Garrido-Balsells, José María; Boluda-Ruiz, Rubén; Castillo-Vázquez, Beatriz; García-Zambrana, Antonio[et al.] (2024)
For the generation of optical propagation modes using a phase-only spatial light modulators, it is essential that both phase and amplitude components of their complex fieldsare encoded. In this paper, we obtain the complete ... -
Capacity of underwater optical wireless communication systems over salinity-induced oceanic turbulence channels with ISI
Boluda-Ruiz, Rubén; Salcedo-Serrano, Pedro; Castillo-Vázquez, Beatriz; García-Zambrana, Antonio; Garrido-Balsells, José María (Optica Publishing Group, 2021-07-19)
Point-to-point underwater optical wireless communication (UOWC) links are mainly impaired by scattering due to impurities and turbidity in the open water, resulting in a significant inter-symbol interference (ISI) that ... -
Evaluating pointing errors on ergodic capacity of DF relay-assisted FSO communication systems
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen (2015-09-15)
Ergodic capacity of decode-and-forward (DF) relay-assisted free-space optical (FSO) communication systems when line of sight is available is analyzed over gamma-gamma fading channels with pointing errors. Novel closed-form ... -
Impact of angular pointing error on BER performance of underwater optical wireless links
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Hranilovic, Steve (Optica Publishing Group, 2020-11-09)
Even in clear ocean water, underwater optical wireless communication (UOWC) is impaired not only by absorption and scattering, but also by oceanic turbulence and dynamic pointing errors which result in a fading channel, ... -
Impact of nonzero boresight pointing error on ergodic capacity of MIMO FSO communication systems
Boluda-Ruiz, Rubén; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen; García-Zambrana, Antonio (Optica Publishing Group, 2016)
A thorough investigation of the impact of nonzero boresight pointing errors on the ergodic capacity of multiple-input/multiple-output (MIMO) free-space optical (FSO) systems with equal gain combining (EGC) reception under ... -
Impact of scattering on secrecy outage probability of underwater optical wireless links
Boluda-Ruiz, Rubén; Salcedo-Serrano, Pedro; Castillo-Vázquez, Beatriz; García Zambrana, Antonio; Garrido-Balsells, José María (Institute of Electrical and Electronics Engineers, 2023-10)
The analysis of physical layer security aspects in underwater optical wireless communication (UOWC) systems has attracted considerable attention in recent years due to the increasing need to transmit large and secure amounts ... -
Impulse response modeling of underwater optical scattering channels for wireless communication
Boluda-Ruiz, Rubén; Rico-Pinazo, Pedro; Castillo-Vázquez, Beatriz; García-Zambrana, Antonio; Qaraqe, Khalid (Institute of Electrical and Electronics Engineers, 2020-08)
Despite the fact that underwater optical wireless communication (UOWC) systems are able to provide high-data rate links with high security, the performance of these systems presents several limitations related to the maximum ... -
Novel approximation of misalignment fading modeled by Beckmann distribution on free-space optical links
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen (Optica Publishing Group, 2016)
A novel accurate and useful approximation of the well-known Beckmann distribution is presented here, which is used to model generalized pointing errors in the context of free- space optical (FSO) communication systems. We ... -
On the Effect of Air Bubbles-Induced Scattering on Turbid Waters: An Experimental UOWC Channel Modeling Approach
Salcedo-Serrano, Pedro; Gomez-Garcia, Carlos; Iamaguti-Debessa, Jacqueline; Boluda-Ruiz, Rubén; Garrido-Balsells, José María; Castillo-Vázquez, Beatriz; Puerta-Notario, Antonio; García-Zambrana, Antonio[et al.] (IEEE Xplore, 2024-05-23)
The influence of the oceanic medium on the underwater optical wireless communication (UOWC) highlights the need for an accurate mathematical channel characterization that models the properties of realistic oceanic environments, ... -
Outage capacity of rate-adaptive relaying for FSO links with nonzero boresight pointing errors
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen; Qaraqe, Khalid; qaraqe[et al.] (Institute of Electrical and Electronics Engineers, 2019-03-20)
An outage capacity analysis of a three-way free-space optical (FSO) setup based on the optical path selection, either source-destination (S-D) or source-relay-destination (S-R-D), with a greater value of channel gain along ... -
Outage Performance of Exponentiated Weibull FSO Links Under Generalized Pointing Errors.
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Carmen; Castillo-Vázquez, Beatriz; Hranilovic, Steve (IEEE, 2017)
Even in clear conditions, free-space optical (FSO) links are impaired by scintillation and dynamic misalignment which result in a slow fading channel. This paper presents the first characterization of outage performance ... -
Performance Evaluation of UOWC Systems from an Empirical Channel Model Approach for Air Bubble-Induced Scattering
Salcedo-Serrano, Pedro; Boluda-Ruiz, Rubén; Garrido-Balsells, José María; Castillo-Vázquez, Beatriz; Puerta-Notario, Antonio; García-Zambrana, Antonio[et al.] (MDPI, 2024-08-13)
Underwater optical wireless communication (UOWC) systems provide the potential to establish secure high-data-rate communication links in underwater environments. The uniqueness of oceanic impairments, such as absorption, ... -
Revolutionizing electrical engineering education: a new active learning method based on student-generated multimedia content
Boluda-Ruiz, Rubén; Salcedo-Serrano, Pedro; Castillo-Vázquez, Beatriz; García-Zambrana, Antonio (Institute of Electrical and Electronics Engineers, 2024-07-15)
A novel active and collaborative learning approach that uses videos to enhance student participation and motivation in Electrical Engineering courses at the University of Málaga, is implemented. This work arises in response ... -
Secure communication for FSO links in the presence of eavesdropper with generic location and orientation
Boluda-Ruiz, Rubén; Castillo-Vázquez, Beatriz; García-Zambrana, Antonio; Qaraqe, Khalid (Optica Publishing Group, 2019)
When the beam waist at the receiver is significantly larger than the receiver size, free-space optical (FSO) links may be vulnerable to some optical tapping risks at the physical layer. In this paper, we conduct a new ... -
Statistical Channel Impulse Response Modeling for Optical Wireless Communication in Turbid Waters
Boluda-Ruiz, Rubén; Rico-Pinazo, Pedro; Castillo-Vázquez, Beatriz; García-Zambrana, Antonio; Qaraqe, Khalid (URSI'19 (Sevilla, septiembre, 2019), 2019)
Underwater optical wireless communication (UOWC) systems support high-speed, reliable and cost-effective implementations that are demanded for extending the telecommunication networks to oceans. UOWC systems suffer from ... -
UOWC spatial diversity techniques over hostile maritime environments: an approach under imperfect CSI and per-source power constraints
Salcedo-Serrano, Pedro; Boluda-Ruiz, Rubén; Garrido-Balsells, José María; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Puerta-Notario, Antonio; Hranilovic, Steve[et al.] (Optica Publishing Group, 2024-11-18)
Optical communication in submarine environments has emerged as a novel technology that enables high bandwidth and high data rate links. However, the unique characteristics of the underwater channel impose new challenges, ...