Results 41 to 50 of about 1,174,103 (294)

Bandwidth efficient multi-station wireless streaming based on complete complementary sequences [PDF]

open access: yes, 2009
Data streaming from multiple base stations to a client is recognized as a robust technique for multimedia streaming. However the resulting transmission in parallel over wireless channels poses serious challenges, especially multiple access interference ...
Khirallah, Chadi   +4 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Novel direct sequence spread spectrum communication method

open access: yesTongxin xuebao, 2023
In response to the problem of limited performance and low spectral efficiency in complex multipath environments of traditional direct sequence spread spectrum communication, a cyclic prefix (CP) block transmission structure spread spectrum system with a ...
Fanglin GU   +5 more
doaj   +2 more sources

A New Time-Hopping Multiple Access Communication System Simulator: Application to Ultra-Wideband

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Time-hopping ultra-wideband technology presents some very attractive features for future indoor wireless systems in terms of achievable transmission rate and multiple access capabilities.
José M. Páez-Borrallo   +1 more
doaj   +1 more source

Probability of intercepting frequency hoping signals using modern search receivers

open access: yesVojnotehnički Glasnik, 2001
This article is intended to present the latest scientific findings about the interception of frequency hoping signals. The probability of intercepting frequency hopping signals by means of modern search receivers or scanning direction finders is ...
Slađan M. Svrzić   +1 more
doaj   +1 more source

Joint Compressed Sensing and Spread Spectrum Through-the-Wall Radar Imaging

open access: yesIEEE Access, 2021
High-resolution radar imaging has to be accomplished within the constraints of aperture size, frequency, and acquisition time. To achieve effective and reliable imaging, we introduce a compressed sensing (CS) technology to spread spectrum through-the ...
Minchao Li   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Filters Ranking for DWT-Domain Robust Digital Watermarking

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
In recent years a number of wavelet-based watermarking schemes have been proposed and exhibited improved qualities. The choice of a wavelet filter bank for a digital watermarking scheme can have a significant influence on the scheme's performance in ...
Dietze Martin, Jassim Sabah
doaj   +1 more source

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

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

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