Results 21 to 30 of about 5,893,470 (283)

Multi-Color Laser Diode Heterodyned 28-GHz Millimeter-Wave Carrier Encoded With DMT for 5G Wireless Mobile Networks

open access: yesIEEE Access, 2019
By using a multi-color laser diode carrier with orthogonal polarization and single-carrier modulation, the long-reach single-mode fiber (SMF) passive optical network and millimeter-wave wireless access network (WAN) with carrying narrow-band and ...
Huai-Yung Wang   +4 more
doaj   +1 more source

Multi-band MEG signatures of BOLD connectivity reorganization during visuospatial attention

open access: yesNeuroImage, 2021
The functional architecture of the resting brain, as measured with the blood oxygenation level-dependent functional connectivity (BOLD-FC), is slightly modified during task performance.
Chiara Favaretto   +6 more
doaj   +1 more source

Neural Network Detection for Bandwidth-Limited Non-Orthogonal Multiband CAP UVLC System

open access: yesIEEE Photonics Journal, 2022
In this paper, we propose a novel sparse data-to-symbol neural network (SDSNN) receiver for bandwidth-limited underwater visible light communication (UVLC) based on non-orthogonal multi-band carrierless amplitude and phase modulation (NM-CAP).
Jiang Chen   +6 more
doaj   +1 more source

A Novel CAP-WDM-PON Employing Multi-Band DFT-Spread DMT Signals Based on Optical Hilbert-Transformed SSB Modulation

open access: yesIEEE Access, 2019
We propose and experimentally demonstrate a novel carrier-less amplitude/phase modulation wavelength-division-multiplexing passive optical network (CAP-WDM-PON) with its bandwidth efficiency enhanced by using a multi-band discrete Fourier transform ...
Youxu Zeng   +6 more
doaj   +1 more source

Experimental multi-user VLC system using non-orthogonal multi-band CAP modulation [PDF]

open access: yes, 2020
This paper provides experimental results for a multi-user visible light communications system using multi-band carrier-less amplitude and phase (m-CAP) modulation scheme.
Haigh, P. A.   +13 more
core   +1 more source

Retrieval of Ocean Surface Wind Speed Using Reflected BPSK/BOC Signals

open access: yesRemote Sensing, 2020
The Global Navigation Satellite System (GNSS) has become a valuable resource as a remote sensing technique. In the past decade, the use of reflected GNSS signals for sensing the Earth, also known as GNSS reflectometry (GNSS-R), has grown rapidly.
Hao-Yu Wang, Jyh-Ching Juang
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

A Low Power High Speed Mobile Memory I/O Interface Using Reconfigurable Multi-Band Multi-Modulation Signaling [PDF]

open access: yes, 2017
This research mainly focuses on the design of a novel memory I/O interface with high bandwidth and high energy-efficient for mobile computing systems in order to dramatically enhance the circuit and system bandwidth and power efficiency.
Yu, Yue
core   +1 more source

Analysis and Simulation about a Simplified Model for Modulation and Demodulation of Ship-borne Single Channel Monopulse Radar

open access: yesMATEC Web of Conferences, 2018
A simplified mathematical model for modulation and demodulation of a single channel monopulse (SCM) system is proposed, which is based on a ship-borne pulse radar S-band guided receiver.
Zhang Xudong, Ji Haiyu
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

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