Results 71 to 80 of about 140,441 (346)
Unified Model and Survey on Modulation Schemes for Next-Generation Automotive Radar Systems
Remote SensingCommercial automotive radar systems for advanced driver assistance systems (ADASs) have relied on frequency-modulated continuous wave (FMCW) waveforms for years due to their low-cost hardware, simple signal processing, and established academic and ...
Moritz Kahlert +4 more
doaj +1 more source
New Transferrin Receptor‐Targeting Conjugate Effectively Delivers DNA to Mouse Brain
Angewandte Chemie, EarlyView.We present a novel RNA aptamer targeting the transferrin receptor (TfR), conjugated with DSPE lipid, which achieves remarkably efficient brain uptake, reaching brain‐to‐serum ratios as high as 6.5. Through fluorescence imaging and polymerase‐chain reaction analyses, we verify that this new conjugate successfully delivers a substantial amount of DNA ...
Min‐sun Song +8 more
wiley +2 more sources
Extremely low frequency based communication link [PDF]
, 2009 The paper discusses the literature review and the possibility of using the ground itself as transmission medium for various users’ transceivers and an administrator transceiver using Multi-Carrier-Direct Sequence-Code Division Multiple Access (MC-DS-CDMA)
Alaiwi, A +3 more
core
Downlink Precoding for Massive MIMO Systems Exploiting Virtual Channel Model Sparsity
, 2017 In this paper, the problem of designing a forward link linear precoder for Massive Multiple-Input Multiple-Output (MIMO) systems in conjunction with Quadrature Amplitude Modulation (QAM) is addressed.
Ayanoglu, Ender, Ketseoglou, Thomas
core +1 more source
Square-Wave Spatial Optical Orthogonal Frequency-Division Multiplexing
IEEE Photonics JournalVisible light communication (VLC) systems leverage illumination devices, such as light-emitting diodes (LEDs), to serve a dual role as indoor high-speed communication downlinks.
Mohammed S. A. Mossaad +5 more
doaj +1 more source
Optical Fiber Meta‐Tips Based on Partial‐Phase Control
Advanced Optical Materials, EarlyView.Optical fibers working as beam splitters or focusing lens are demonstrated, with the aid of a metasurface integrated on the fiber end facet. Metasurfaces based on meta‐atoms featuring partial control of the phase are considered unleashing their potential.
Maria Principe +5 more
wiley +1 more source
Polarization Management on Anisotropic Thin‐Film Lithium Niobate Platform
Advanced Photonics Research, EarlyView.This review focuses on x‐cut thin‐film lithium niobate (TFLN), exploring strategies to mitigate anisotropy and mode hybridization. It covers polarization beam splitters, rotators, splitter‐rotators, polarizers, and polarization‐insensitive components. Key applications include polarization‐division multiplexing, polarization‐insensitive modulation, and ...
Kaixuan Chen +9 more
wiley +1 more source
Alamouti OFDM/OQAM systems with time reversal technique [PDF]
, 2015 Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (OFDM/OQAM) is a multicarrier modulation scheme that can be considered as an alternative to the conventional Orthogonal Frequency Division Multiplexing (OFDM) with ...
Blel, Ilhem, Bouallegue, Ridha
core
Desarrollo de una forma de onda GFDM con radio definida por software [PDF]
, 2018 In this paper the performance of a Generalized Frequency Division Multiplexing waveform is evaluated when compared to an Orthogonal Frequency Division Multiplexing signal.
Ducuara-Hernández, Elkin Andrés +2 more
core +2 more sources
Orthogonal Chirp Division Multiplexing for Underwater Acoustic Communication
Sensors, 2018 The objective of this study is to investigate a novel Underwater Acoustic Communication (UWAC) system based on a modulated chirp signal termed as Orthogonal Chirp Division Multiplexing (OCDM).
Yiqi Bai, Pierre-Jean Bouvet
doaj +1 more source