Zobrazeno 1 - 10
of 235
pro vyhledávání: '"López-Martinez F"'
Autor:
Vega-Sánchez, José David, Mora, Henry Ramiro Carvajal, Garzón, Nathaly Verónica Orozco, López-Martínez, F. J.
Compact Ultramassive Antenna Array (CUMA) is a pioneering paradigm that leverages the flexibility of the Fluid Antenna System (FAS) to enable a simple multiple access scheme for massive connectivity without the need for precoding, power control at th
Externí odkaz:
http://arxiv.org/abs/2409.15164
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Kaveh, Masoud, Lopez-Martinez, F. Javier, New, Wee Kiat, Xu, Hao
This paper examines the impact of emerging fluid antenna systems (FAS) on reconfigurable intelligent surface (RIS)-aided secure communications. Specifically, we consider a classic wiretap channel, where a fixed-antenna transmitter sends confidential
Externí odkaz:
http://arxiv.org/abs/2408.14969
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, Shin, Hyundong, Hanzo, Lajos
This paper investigates a two-user downlink system for integrated sensing and communication (ISAC) in which the two users deploy a fluid antenna system (FAS) and adopt the nonorthogonal multiple access (NOMA) strategy. Specifically, the integrated se
Externí odkaz:
http://arxiv.org/abs/2408.04724
Autor:
Fernández, Santiago, Bailón-Martínez, J. Alfonso, Galeote-Cazorla, Juan E., López-Martínez, F. Javier
We introduce and characterize the operational diversity order (ODO) in fading channels, as a proxy to the classical notion of diversity order at any arbitrary operational signal-to-noise ratio (SNR). Thanks to this definition, relevant insights are b
Externí odkaz:
http://arxiv.org/abs/2405.09336
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, New, Wee Kiat, Xu, Hao, Chae, Chan-Byoung
This paper investigates the performance of physical layer security (PLS) in fluid antenna-aided communication systems under arbitrary correlated fading channels. In particular, it is considered that a single fixed-antenna transmitter aims to send con
Externí odkaz:
http://arxiv.org/abs/2402.05722
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, Chae, Chan-Byoung, Tong, Kin-Fai, Zhang, Yangyang
This letter investigates the application of the emerging fluid antenna (FA) technology in multiuser communication systems when side information (SI) is available at the transmitters. In particular, we consider a K-user dirty multiple access channel (
Externí odkaz:
http://arxiv.org/abs/2309.07604
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, Chae, Chan-Byoung, Tong, Kin-Fai, Zhang, Yangyang
This paper investigates the performance of a single-user fluid antenna system (FAS), by exploiting a class of elliptical copulas to describe the dependence structure amongst the fluid antenna positions (ports). By expressing the well-known Jakes' mod
Externí odkaz:
http://arxiv.org/abs/2309.07506
In this work, we analyze how the use of companding techniques, together with digital predistortion (DPD), can be leveraged to improve system efficiency and performance in simultaneous wireless information and power transfer (SWIPT) systems based on p
Externí odkaz:
http://arxiv.org/abs/2308.06189
Autor:
Galeote-Cazorla, Juan E., Ramírez-Arroyo, Alejandro, Lopez-Martinez, F. Javier, Valenzuela-Valdés, Juan F.
As new wireless standards are developed, the use of higher operation frequencies comes in hand with new use cases and propagation effects that differ from the well-established state of the art. Numerous stochastic fading models have recently emerged
Externí odkaz:
http://arxiv.org/abs/2307.15467
We provide an analytical characterization of the coverage region of simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-aided two-user downlink communication systems. The cases of orthogonal multiple access (OMA)
Externí odkaz:
http://arxiv.org/abs/2306.00404