Results 21 to 30 of about 8,148 (288)

Efficient Deep Learning-Based Cascaded Channel Feedback in RIS-Assisted Communications

open access: yesIEEE Transactions on Vehicular Technology
In the realm of reconfigurable intelligent surface (RIS)-assisted communication systems, the connection between a base station (BS) and user equipment (UE) is formed by a cascaded channel, merging the BS-RIS and RIS-UE channels.
Yiming Cui, Jiajia Guo, Chao-Kai Wen
exaly   +2 more sources

Hybrid Vector Message Passing for Cascaded Channel Estimation in RIS-Aided Multi-User MIMO-OFDM Systems

open access: yesIEEE Transactions on Wireless Communications
International audienceThis paper investigates the fundamental problem of cascaded channel estimation in reconfigurable intelligent surface (RIS) aided multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM)
Wenjun Jiang   +2 more
exaly   +2 more sources

Analysis of Cascaded Codes Using LDPC Code and RS Codeof Visible Light Communication Channel Coding

open access: yesJournal of Harbin University of Science and Technology, 2017
As visible light communication may be affected by a lot of noise,channel coding receives wide attention it is an important means of communication error correction.
CHE Nan, SUN Wei, LIU Hui
doaj   +2 more sources

Cascaded PLC-VLC Channel: An Indoor Measurements Campaign

open access: yesIEEE Access, 2018
Recently, power-line communication (PLC) technology has been associated with the emerging visible light communication (VLC) technology. PLC technology is matured and has gained from tremendous research contributions over the past years.
Stephane M. Nlom   +2 more
doaj   +3 more sources

Improved Performances in Point-to-Multipoint Flexible Optical Transceivers Utilizing Cascaded Discrete Fourier Transform-Spread Inverse Fast Fourier Transform/Fast Fourier Transform-Based Multi-Channel Aggregation/De-Aggregation

open access: yesPhotonics
The previously proposed cascaded inverse fast Fourier transform/fast Fourier transform (IFFT/FFT)-based point-to-multipoint (P2MP) flexible optical transceivers have the potential to equip future intensity modulation and direct detection (IMDD) optical ...
Lin Chen   +7 more
doaj   +2 more sources

Cascaded Pedestrian Detection Based on ACF and Improved Channel Features by PCANet [PDF]

open access: yesJisuanji gongcheng, 2017
As the Aggregate Channel Features(ACF) algorithm has many false detection windows,a coarse-to-fine cascaded pedestrian detection algorithm is proposed.ACF is employed as the coarse detector,and then the channel features are improved to filter out false ...
HUANG Peng,YU Fengqin
doaj   +2 more sources

Exploiting Cascaded Channel Signature for PHY-Layer Authentication in RIS-Enabled UAV Communication Systems

open access: yesDrones
Reconfigurable Intelligent Surface (RIS)-assisted Unmanned Aerial Vehicle (UAV) communications face a critical security threat from impersonation attacks, where adversaries impersonate legitimate entities to infiltrate networks to obtain private data or ...
Changjian Qin   +3 more
doaj   +2 more sources

The capacity of the cascaded fading channel in the low power regime

open access: yes2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
In this paper, we present a simple way to compute the ergodic capacity of cascaded channels with perfect channel state information at both the transmitter and the receiver.
Fatma Benkhelifa   +5 more
core   +2 more sources

Channelization cascade in landscape evolution [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
The hierarchy of channel networks in landscapes displays features that are characteristic of nonequilibrium complex systems. Here we show that a sequence of increasingly complex ridge and valley networks is produced by a system of partial differential equations coupling landscape evolution dynamics with a specific catchment area equation. By means of a
Sara Bonetti   +3 more
openaire   +3 more sources

Sparse Code With Minimum Hamming Distance of Three for Spin-Torque Transfer Magnetic Random Access Memory

open access: yesIEEE Access, 2023
Spin-torque-transfer magnetic random access memory (STT-MRAM) has recently emerged as a promising technology to replace dynamic random access memory (DRAM).
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

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