Results 121 to 130 of about 639,489 (294)

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

open access: yesAdvanced Photonics Research, Volume 6, Issue 7, July 2025.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang   +7 more
wiley   +1 more source

Multiple model predictive control for offshore wind turbines operating in the full‐load range

open access: yesAsian Journal of Control, Volume 27, Issue 4, Page 2023-2036, July 2025.
Abstract This paper presents a multiple model predictive control (MMPC) strategy based on an individual blade pitch (IBP) mechanism to control floating offshore wind turbines (FOWTs) when operating in the full‐load range (above the rated wind speed).
Milad Abbasi, Nasser Sadati
wiley   +1 more source

INVESTIGATION OF FADING IN THE COMMUNICATION SYSTEM USING OFDM TECHNOLOGY

open access: yesРадіоелектронні і комп'ютерні системи, 2018
A new technique exploited for estimating of fading influence in multipath signal propagation environment for communication system using OFDM (Orthogonal frequency-division multiplexing) technology is proposed.
Алексей Андреевич Бреславец   +1 more
doaj   +1 more source

Modulation-mode assignment for SVD-assisted and iteratively detected downlink multiuser MIMO transmission schemes [PDF]

open access: yes, 2011
In this contribution we jointly optimize the number of multiple-input multiple-output (MIMO) layers and the number of bits per symbol within an iteratively-detected multiuser MIMO downlink (DL) transmission scheme under the constraint of a given fixed ...
Ahrens, Andreas, Benavente Peces, César
core   +1 more source

Joint Subcarrier Allocation and Beamforming Optimization for IRS‐Assisted Multiuser MISO‐OFDMA Systems

open access: yesTransactions on Emerging Telecommunications Technologies, Volume 36, Issue 7, July 2025.
We introduce a novel model of an IRS‐assisted MU‐MISO‐OFDMA system. We aim to jointly optimize beamforming vectors, IRS reflection coefficients, and OFDM subcarrier allocation to maximize the overall sum rate. ABSTRACT In this article, we propose a novel resource allocation strategy for multiuser multiple‐input single‐output orthogonal frequency ...
Binh‐Minh Vu, Oh‐Soon Shin
wiley   +1 more source

Deep MIMO detection

open access: yes2017 IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2017
In this paper, we consider the use of deep neural networks in the context of Multiple-Input-Multiple-Output (MIMO) detection. We give a brief introduction to deep learning and propose a modern neural network architecture suitable for this detection task.
Ami Wiesel, Tzvi Diskin, Neev Samuel
openaire   +2 more sources

MIMO Techniques and Applications [PDF]

open access: yes, 2014
First generation of cellular networks (1G) were analogue, having been deployed between 1980 and 1992. 1G included a myriad of cellular systems, namely the total access communication system (TACS), the advanced mobile phone system (AMPS), the Nordic mobile telephony (NMT), among others.
Silva, Mário Marques da   +1 more
openaire   +3 more sources

IMPLEMENTING CHANNEL ESTIMATION AND MODULATION TECHNIQUES USING MIMO-PSK [PDF]

open access: yesProceedings on Engineering Sciences
Wireless communication must be designed with the inbuilt characteristics inclusive of high data rates, transmission efficiency, high quality of data transmission and multimedia transmission in communication framework.
K. R. Priya Dharshini , R. Kalaivani
doaj   +1 more source

MIMO Precoding for Networked Control Systems with Energy Harvesting Sensors

open access: yes, 2016
In this paper, we consider a MIMO networked control system with an energy harvesting sensor, where an unstable MIMO dynamic system is connected to a controller via a MIMO fading channel.
Cai, Songfu, Lau, Vincent K. N.
core   +1 more source

A Survey on Physical Layer Performance of MIMO-WiMAX [PDF]

open access: yesE3S Web of Conferences
The IEEE 802.16 WiMAX standard for BWA (Broadband Wireless Access) was designed to offer end users high transmission data rates across wider regions.Wireless communication requires MIMO systems because they enable data to be sent and received through ...
Naveena A., Divya Udataneni
doaj   +1 more source

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