Results 1 to 10 of about 61,814 (314)

Channel Identification Using Chaos for an Uplink/Downlink Multicarrier Code Division Multiple Access System

open access: yesJournal of Telecommunications and Information Technology, 2023
A scheme of chaotic spreading sequence for multicarrier code division multiple access system (MC-CDMA) iproposed to estimate the transmission channel. This systespreads spectrum and identifies the channel, simultaneously.
Miloud Frikel   +3 more
doaj   +1 more source

Machine Learning Applications for Short Reach Optical Communication

open access: yesPhotonics, 2022
With the rapid development of optical communication systems, more advanced techniques conventionally used in long-haul transmissions have gradually entered systems covering shorter distances below 100 km, where higher-speed connections are required in ...
Yapeng Xie   +3 more
doaj   +1 more source

Coherent Radar Target Detection With In-Band Cyclostationary Wireless Interference

open access: yesIEEE Access, 2022
Spectral congestion necessitates the in-band operation or the spectrum-sharing of legacy radar and communication systems. Since these systems operate in the same band in spectrum-sharing mode, they interfere with one another. To address this problem from
Gunnery Srinath   +4 more
doaj   +1 more source

INCREASING OF FOLIC ACID PRODUCTION THROUGH PROTOPLAST FUSION BETWEEN Lactococcus lactis, Lactobacillus SP AND Streptococcus thermophilus [PDF]

open access: yesJournal of Agricultural Chemistry and Biotechnology, 2010
Two strains were selected i.e Lactobacillus acidophilus NB1MCC1380, Lactobacillus bulagricus L. B1449 among  Lactococcus lactis NRRL B 23802 and Streptococcus thermophilus NRC2010 to obtain  as a result of protoplasting fusion.
Eman Ibrahim, S. Ibrahim, Z. Kosba
doaj   +1 more source

Equality of proofs for linear equality [PDF]

open access: yesArchive for Mathematical Logic, 2008
19 pages, correction made at the end of Section ...
Kosta Dosen, Zoran Petric
openaire   +2 more sources

Evaluation of LDPC codes efficiency in channels with fading [PDF]

open access: yesE3S Web of Conferences, 2023
The article discusses the operation of communication systems using a low-density parity check codes in channels with multipath propagation. This class of codes has found wide application in modern communication and broadcasting systems and is one of the ...
Shinkevich Artem   +5 more
doaj   +1 more source

Digital occlusal analysis of bite force distribution in partially edentulous patients before and after prosthetic rehabilitation: An in vivo study

open access: yesSRM Journal of Research in Dental Sciences, 2021
Background: The measurement of bite force can provide useful data for the evaluation of jaw muscle function and activity. Technological advances in signal detection and processing have improved the quality of the information extracted from bite force ...
Liza Rahman   +5 more
doaj   +1 more source

Turkey Red Oil as a Renewable Leveling and Dispersant Option for Polyester Dyeing with Dispersed Dyes

open access: yesTextiles, 2023
The objective of this work was to evaluate Turkey red oil as a renewable dispersant and leveling option for dyeing polyester knitted fabric with disperse dyes.
Jully Schmidt Pinto Filippi   +5 more
doaj   +1 more source

Investigation of FBMC-OQAM Equalization with Real Interference Prediction Algorithm Properties for MIMO Transmission Scheme

open access: yesSensors, 2023
Increasing the data transfer rate is an urgent task in cellular, high-frequency (HF) and special communication systems. The most common way to increase the data rate is to expand the bandwidth of the transmitted signal, which is often achieved through ...
Vladimir O. Varlamov   +2 more
doaj   +1 more source

Pilot-Assisted OFDM for Underwater Acoustic Communication

open access: yesJournal of Marine Science and Engineering, 2021
Multicarrier techniques have made it possible to wirelessly transmit data at higher rates for underwater acoustic (UWA) communication. Several multicarrier techniques have been explored in the past for wireless data transmission.
Mohsin Murad   +2 more
doaj   +1 more source

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