Results 41 to 50 of about 1,330,151 (239)
On‐Chip Photonic Neural Network Architectures
Advanced Optical Materials, EarlyView.This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong +7 more
wiley +1 more source
Visible‐Blind Near‐Infrared Organic Vision Sensors for Imaging in Adverse Environmental Conditions
Advanced Optical Materials, EarlyView.This work presents high‐performance visible‐blind NIR OPDs enabled by a multilayer optical modulation layer. The devices achieve strong visible‐light suppression and enhanced NIR sensitivity, enabling robust imaging in foggy or low‐light environments.
Baozhong Deng +9 more
wiley +1 more source
Jurnal Nasional Teknik Elektro, 2017 This study is the simulation of SPIHT image compression using diversity selection combining techniques. The image is compressed by using SPIHT compression techniques after wavelet decomposition.
Baharuddin Abbas
doaj +1 more source
Least Square Estimation-Based Different Fast Fading Channel Models in MIMO-OFDM Systems
International Transactions on Electrical Energy Systems, 2023 In cellular wireless communication systems, channel estimation (CE) plays a pivotal role as a crucial technique applied in orthogonal frequency division multiplexing (OFDM) modulation. CE utilizes a variety of methods, including decision-directed channel
Walaa Hussein +6 more
doaj +1 more source
Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics
Advanced Robotics Research, EarlyView.Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won +5 more
wiley +1 more source
, 2004 Iterative detection of Diagonal Block Space Time Trellis Codes (DBSTTCs), Trellis Coded Modulation (TCM) and Reversible Variable Length Codes (RVLCs) is proposed.
Ng, S. X., Hanzo, L., Guo, F.
core +1 more source
Jordanian Journal of Computers and Information Technology, 2020 In this paper, the least-squares channel estimation (LSCE) is investigated for Massive-Multiple-Input Multiple-Output (Ma-MIMO) OFDM systems based on pilot tones.
Abdelhamid Riadi +2 more
doaj +1 more source
Measuring the Impact of Beamwidth on the Correlation Distance of 60 GHz Indoor and Outdoor Channels
IEEE Open Journal of Vehicular Technology, 2021 Due to narrow beamwidth and channel sparseness, millimeter-wave receivers will detect much less multipath than their microwave counterparts, fundamentally changing the small-scale fading properties.
Aidan Hughes +6 more
doaj +1 more source
Soft-decision COVQ for Rayleigh-fading channels [PDF]
IEEE Communications Letters, 1998 A channel-optimized vector quantizer (COVQ) scheme that exploits the channel soft-decision information is proposed. The scheme is designed for stationary memoryless Gaussian and Gauss-Markov sources transmitted over BPSK-modulated Rayleigh-fading channels. It is demonstrated that substantial coding gains of 2-3 dB in channel signal-to-noise ratio (SNR)
Fady Alajaji, Nam C. Phamdo
openaire +2 more sources
Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths
Advanced Science, EarlyView.Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears +5 more
wiley +1 more source