Results 11 to 20 of about 1,981,914 (281)

Circuit Modelling of Reflecting Intelligent Surfaces

open access: yes2021 IEEE 22nd International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2021
We present an accurate and simple analytical model for the computation of the reflection coefficient amplitude and phase of Reflecting Intelligent Surfaces (RIS). The proposed approach takes into account mutual coupling among cells, the effect of incidence angle and polarization of impinging electro-magnetic waves.
Filippo Costa, Michele Borgese
openaire   +4 more sources

Intelligent Reflecting Surfaces for Underwater Visible Light Communications [PDF]

open access: yesIEEE Photonics Journal, 2023
Intelligent reflecting surfaces (IRSs) offer paradigm shift towards enhancing the capabilities of wireless communications. The use of this emerging technology in the realm of underwater wireless systems is a promising solution to overcome the limitations
Yalcin Ata   +4 more
doaj   +2 more sources

Wireless Network Coding With Intelligent Reflecting Surfaces [PDF]

open access: yesIEEE Communications Letters, 2021
Conventional wireless techniques are becoming inadequate for beyond fifth-generation (5G) networks due to latency and bandwidth considerations. To improve the error performance and throughput of wireless communication systems, we propose physical layer network coding (PNC) in an intelligent reflecting surface (IRS)-assisted environment.
Amanat Kafizov   +3 more
openaire   +7 more sources

Intelligent Reflecting Surfaces With Spatial Modulation: An Electromagnetic Perspective [PDF]

open access: yesIEEE Open Journal of the Communications Society, 2020
Electromagnetic wave control using the concept of a reflecting surface is first studied as a near-field and a far-field problem. Using a secondary source present in a wireless communication environment, such as a backscatter tag, it is possible to ...
Okan Yurduseven   +2 more
doaj   +4 more sources

Intelligent Reflecting Surfaces Enhanced Federated Learning

open access: yes2020 IEEE Globecom Workshops (GC Wkshps, 2020
This paper investigates the problem of model aggregation for the federated learning aided by multiple intelligent reflecting surfaces (IRSs). Since the local parameters are transmitted over wireless channels, the undesirable propagation error will inevitably deteriorate the performance of global aggregation.
Wanli Ni, Yuanwei Liu, Hui Tian 0003
openaire   +3 more sources

Exploring Elemental Properties of Intelligent Reflecting Surfaces

open access: yes2025 IEEE International Conference on Communications Workshops (ICC Workshops)
Intelligent Reflecting Surfaces (IRSs), renowned for their ability to reconfigure wireless signals, operate on the principle of dynamic phase tuning. The reflected signals are configured by controlling the induced capacitance at each element, typically ...
Kushwaha, Ravi   +5 more
core   +4 more sources

WiFi-based Respiration Detection Aided by Intelligent Reflecting Surfaces

open access: yesLeida xuebao
Since 2010, the utilization of commercial WiFi devices for contact-free respiration monitoring has garnered significant attention. However, existing WiFi-based respiration detection methods are susceptible to constraints imposed by hardware limitations ...
Yun WU   +5 more
doaj   +2 more sources

Intelligent Reflecting Surfaces for Compute-and-Forward [PDF]

open access: yes2021 Iran Workshop on Communication and Information Theory (IWCIT), 2021
Compute-and-forward is a promising strategy to tackle interference and obtain high rates between the transmitting users in a wireless network. However, the quality of the wireless channels between the users substantially limits the achievable computation rate in such systems. In this paper, we introduce the idea of using intelligent reflecting surfaces
Mahdi Jafari Siavoshani   +2 more
openaire   +4 more sources

Metasurface aided intelligent reflecting surfaces for indoor GSSK-VLC downlink. [PDF]

open access: yes, 2022
To provide high-quality communication in the indoor generalized space shift keying (GSSK) aided visible light communications (VLC) downlink transmission, especially when the line-of-sight (LoS) link is blocked, a metasurface aided intelligent reflecting ...
Zhu, Z.   +4 more
core   +8 more sources

Electromagnetic Model of Reflective Intelligent Surfaces [PDF]

open access: yesIEEE Open Journal of the Communications Society, 2021
An accurate and simple analytical model for the computation of the reflection amplitude and phase of Reconfigurable Intelligent Surfaces is presented. The model is based on a transmission-line circuit representation of the RIS which takes into account the physics behind the structure including the effect of all relevant geometrical and electrical ...
Filippo Costa, Michele Borgese
openaire   +6 more sources

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