Results 51 to 60 of about 416,241 (288)
Multi-User Secure Receiving Algorithm Based on Blind Recovery in MIMO Network
IEEE Access, 2021 In order to optimize the performance of data transmission in multiple input multiple output (MIMO) wireless communication systems, a spread spectrum self-interference system based on channel inverse matrix modulation is proposed.
Yongli An +3 more
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS 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
Novel Algorithm for Joint Channel Estimation and Spreading Sequence Detection in DSSS Systems
IEEE AccessIn this paper, a novel turbo-based algorithm is proposed for joint channel estimation and spreading sequence detection in a Direct Sequence Spread Spectrum (DSSS) system. For the channel estimation, a set of candidate angles is designed in an uncertainty
Seungjun Oh, Hichan Moon
doaj +1 more source
A novel chip-interleaving DS SS system [PDF]
, 2000 This paper proposes a chip-interleaving direct-sequence (DS) spread-spectrum (SS) system. Its performance is analyzed under ON-OFF wide-band jamming, and closed-form bit error rate (BER) performances of two special cases of the system are obtained.
Gui, X, Ng, TS
core +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS 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
IET Signal Processing, 2023 In non‐cooperative scenarios, the spreading sequences or waveforms of the direct sequence spread spectrum (DSSS) signals is unknown to the receiver.
Liangliang Li +4 more
doaj +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Jurnal Ilmiah SINERGI, 2017 Salah satu kelebihan utama sistem komunikasi Spread Spectrum adalah kemampuannya mengirimkan data informasi disertai kode-kode unik sehingga hanya perangkat penerima tertentu saya yang mampu mendeteksinya. Sangat banyak metode pembangkitan kode unik pada
Budi Herdiana, Muhammad Aria, Jana Utama
doaj +1 more source
Performance analysis of direct-sequence spread-spectrum underwater acoustic communications based on at-sea data [PDF]
MATEC Web of Conferences, 2019 Direct sequence spread spectrum (DSSS) signal uses phase coherent signals where the information symbols are multiplied with a code sequence, commonly known as chips. The signals are processed at the receiver using the code sequence as a matched filter to
Du Pengyu +3 more
doaj +1 more source
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics, 2019 Abstrak. Pada penelitian ini, telah dilakukan analisa karakterisasi pada teknologi Direct Sequence Spread Spectrum dan Frequency Hopping Spread Spectrum, sebagai salah satu teknik multiple-access pada sistem komunikasi. Karakterisasi dilakukan untuk mencari bagaimana cara meningkatkan keoptimalan kedua sistem tersebut, dalam mengatasi masalah ...
Fawzan Galib Abdul Karim Bawahab +2 more
openaire +1 more source