Results 31 to 40 of about 5,600 (224)

Hybrid SNR‐Adaptive Multiuser Detectors for SDMA‐OFDM Systems

open access: yesETRI Journal, 2018
Multiuser detection (MUD) and channel estimation techniques in space‐division multiple‐access aided orthogonal frequency‐division multiplexing systems recently has received intensive interest in receiver design technologies.
Uğur Yeşilyurt, Özgür Ertuğ
doaj   +1 more source

Smart Flexible Tactile Sensors: Recent Progress in Device Designs, Intelligent Algorithms, and Multidisciplinary Applications

open access: yesAdvanced Intelligent Discovery, EarlyView.
Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang   +3 more
wiley   +1 more source

MPOE Based Adaptive Multiuser Detection [PDF]

open access: yes, 2008
Introduction . Continuous Time Discrete Time . MPOE Based Methods: Introduction . Probability of Error Expressions Probability Distribution of the Decision Statistics Joint Probability Conditional Probability .
Multiuser Detection Brief
core  

Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network

open access: yesAdvanced Intelligent Discovery, EarlyView.
A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia   +3 more
wiley   +1 more source

Genetic-Algorithm-Assisted Multiuser Detection in Asynchronous CDMA Communications [PDF]

open access: yes, 2004
—In an asynchronous direct-sequence code-division multiple-access, a specific bit of the reference user is interfered by two asynchronously arriving surrounding bits of all the other users supported by the system.
YEN, K., HANZO, L.
core  

Genetic Algorithm Assisted Minimum Bit Error Rate Multiuser Detection in Multiple Antenna Aided OFDM [PDF]

open access: yes, 2004
The family of minimum bit error rate (MBER) multiuser detectors (MUD) is capable of outperforming the classic minimum mean-squared-error (MMSE)MUDin term of the achievable bit-error rate (BER) owing to directly minimising the BER cost function.
Alias, M.Y.   +7 more
core   +1 more source

Applicability of new radio technologies for advanced UMTS networks [PDF]

open access: yesAdvances in Radio Science, 2004
An expanded effort is under the way to support the evolution of UMTS (Universal Mobile Telecommunication System). Apart from delivering high data rates, future UMTS releases will also require to provide high network performance in terms of system ...
A. Dekorsy   +3 more
doaj  

A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link

open access: yesThe Scientific World Journal, 2014
This study mainly focuses on multiuser detection in tracking and data relay satellite (TDRS) system forward link. Minimum mean square error (MMSE) is a low complexity multiuser detection method, but MMSE detector cannot achieve satisfactory bit error ...
Zhendong Yin   +3 more
doaj   +1 more source

Energy-Efficient Precoding Design for Multiuser MISO VLC Systems Based on Joint Detection

open access: yesIEEE Access, 2019
In this paper, we study energy-efficient precoding techniques in multiuser multiple-input single-output (MISO) visible light communication (VLC) systems.
Zhen-Yu Wang, Hong-Yi Yu, Da-Ming Wang
doaj   +1 more source

Dasatinib and quercetin prevent alveolar bone loss in aged mice

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Recent findings have associated alveolar bone loss (ABL) with the presence of senescent cells. Aging and the accumulation of senescent cells are associated with a pro‐inflammatory environment which may exacerbate tissue damage.
Luisa S. Battistelli   +7 more
wiley   +1 more source

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