Results 11 to 20 of about 51,657 (260)

Deep Learning-Based Spread-Spectrum FGSM for Underwater Communication

open access: yesSensors, 2020
The limitation of the available channel bandwidth and availability of a sustainable energy source for battery feed sensor nodes are the main challenges in the underwater acoustic communication.
Zeyad A. H. Qasem   +4 more
doaj   +1 more source

ANALYSIS OF CORRELATION AND SPECTRAL CHARACTERISTICS OF FRACTAL COMB-STRUCTURED SIGNALS

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016
The paper presents theoretical and experimental investigations of the spectra of fractal comb-structured signals for different values of their coefficient of generation, as well as analyzes autocorrelation characteristics and phase portraits depending on
Ruslan Politanskyi, Andrij Veryga
doaj   +1 more source

Deep Learning-Based Cyclic Shift Keying Spread Spectrum Underwater Acoustic Communication

open access: yesJournal of Marine Science and Engineering, 2021
A deep learning-based cyclic shift keying spread spectrum (CSK-SS) underwater acoustic (UWA) communication system is proposed for improving the performance of the conventional system in low signal-to-noise ratio and multipath effects.
Yufei Liu   +6 more
doaj   +1 more source

Novel method of spread spectrum communication

open access: yesTongxin xuebao, 2013
As the bandwidth efficiency of traditional spread spectrum modulation is quite low,a novel spread spectrum communication method,which uses the relative position of the spread spectrum modulation symbol to carry information was presented,and the method ...
Jia-fang KANG   +5 more
doaj   +2 more sources

Interstellar communication: The case for spread spectrum [PDF]

open access: yesActa Astronautica, 2012
Spread spectrum, widely employed in modern digital wireless terrestrial radio systems, chooses a signal with a noise-like character and much higher bandwidth than necessary. This paper advocates spread spectrum modulation for interstellar communication, motivated by robust immunity to radio-frequency interference (RFI) of technological origin in the ...
openaire   +3 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

PERFORMANCE ANALYSIS OF CHAOS BASED INTERLEAVER IN IDMA SYSTEM

open access: yesICTACT Journal on Communication Technology, 2016
Chaos are wide spread in nature, furthermore its use in the field of communication drew attention in early 90’s and recently chaos based spread spectrum (SS) communication become an interesting area of research. Based on the research; this paper presents
Aasheesh Shukla, Vinay Kumar Deolia
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Gaussian-Distributed Spread-Spectrum for Covert Communications

open access: yesSensors, 2023
Covert communication techniques play a crucial role in military and commercial applications to maintain the privacy and security of wireless transmissions from prying eyes. These techniques ensure that adversaries cannot detect or exploit the existence of such transmissions.
Ismail Shakeel   +3 more
openaire   +3 more sources

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