Results 31 to 40 of about 6,742,680 (324)

Data Detection and Code Channel Allocation for Frequency-Domain Spread ACO-OFDM Systems Over Indoor Diffuse Wireless Channels [PDF]

, 2014
Future optical wireless communication systems promise to provide high-speed data transmission in indoor diffuse environments. This paper considers frequency-domain spread asymmetrically clipped optical orthogonal frequency-division multiplexing (ACOOFDM)
Chen, Ming, Jiang, Peng, Wang, Jin-Yuan, Wang, Jun-Bo, Wang, Jiangzhou   +4 more
core   +1 more source

Chaotic Spread-Spectrum Communication: A Comparative Study between Chaotic Synchronization and Matched Filtering

Chaos Theory and Applications
This publication investigates the performance of demodulation methods utilized in spread spectrum chaotic communication systems, specifically matched filtering and chaotic synchronization.
N. Tihomorskis, A. Ahrens, A. Aboltins
semanticscholar   +1 more source

Design of Galvanic Coupling Intra-Body Communication Transceiver Using Direct Sequence Spread Spectrum Technology

IEEE Access, 2020
Intra-body communication (IBC) uses the human body as the transmission medium for electrical signals, and it features the following advantages: low power consumption, strong anti-interference ability, high data security, and broad application scenarios ...
Wei-Ping Chen, Z.-L. Wei, Yueming Gao, Ž. L. Vasić, M. Cifrek, M. Vai, M. Du, S. Pun   +7 more
semanticscholar   +1 more source

Editorial Note: Impact of COVID-19 on Spectrum operations

, 2020
To support our authors, reviewers and editors during the COVID-19 pandemic, the Spectrum Editorial Board has relaxed its timelines for the publication of this most recent issue (Issue 5).  We are working with our authors on their Issue 5 submissions,
Editorial Board, Spectrum
core   +1 more source

Enhancing Communication Security in Drones Using QRNG in Frequency Hopping Spread Spectrum

Future Internet
This paper presents a novel approach to enhancing the security and reliability of drone communications through the integration of Quantum Random Number Generators (QRNG) in Frequency Hopping Spread Spectrum (FHSS) systems.
J. de Curtò, I. Zarza, Juan-Carlos Cano, C. Calafate   +3 more
semanticscholar   +1 more source

Implementation of Underwater Electric Field Communication Based on Direct Sequence Spread Spectrum (DSSS) and Binary Phase Shift Keying (BPSK) Modulation

Biomimetics
Stable communication technologies in complex waters are a prerequisite for underwater operations. Underwater acoustic communication is susceptible to multipath interference, while underwater optical communication is susceptible to environmental impact ...
Yuzhong Zhang, Zhenyi Zhao, Xinglong Feng, Tianyi Zhao, Qiao Hu   +4 more
semanticscholar   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

A New Approach to Spread-spectrum OFDM

, 2018
Orthogonal frequency division multiplexing (OFDM) systems are reviewed and the Shannon bound is dis- cussed as a criterion of efficient spectrum use and a design criterion. The problem of efficient sharing of spectrum by wireless communication systems is
Shahab Abdulla, Ronald G. Addie, Mohammad Kaisb Layous Alhasnawi, Abdulla, Shahab, Alhasnawi, Mohammad Kaisb Layous, Addie, Ronald G.   +5 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

PERFORMANCE ANALYSIS OF CHAOS BASED INTERLEAVER IN IDMA SYSTEM

ICTACT 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