Results 21 to 30 of about 2,418,601 (257)

Asymmetrically interacting spreading dynamics on complex layered networks [PDF]

open access: yes, 2014
The spread of disease through a physical-contact network and the spread of information about the disease on a communication network are two intimately related dynamical processes.
Do, Younghae   +5 more
core   +3 more sources

Underwater Acoustic Wireless Sensor Networks: Advances and Future Trends in Physical, MAC and Routing Layers

open access: yesSensors, 2014
This survey aims to provide a comprehensive overview of the current researchon underwater wireless sensor networks, focusing on the lower layers of the communicationstack, and envisions future trends and challenges.
Salvador Climent   +4 more
doaj   +1 more source

Pulsed Waveforms and Intermittently Nonlinear Filtering in Synthesis of Low-SNR and Covert Communications

open access: yesIEEE Access, 2020
In traditional spread-spectrum techniques, a wideband transmit signal is obtained by modulating a wideband carrier by a narrowband signal containing a relatively low-rate message.
Alexei V. Nikitin, Ruslan L. Davidchack
doaj   +1 more source

Reliable Physical Layer Network Coding [PDF]

open access: yes, 2011
When two or more users in a wireless network transmit simultaneously, their electromagnetic signals are linearly superimposed on the channel. As a result, a receiver that is interested in one of these signals sees the others as unwanted interference ...
Gastpar, Michael, Nazer, Bobak
core   +1 more source

Physical Layer Definition for a Long-Haul HF Antarctica to Spain Radio Link

open access: yesRemote Sensing, 2016
La Salle and the Observatori de l’Ebre (OE) have been involved in a remote sensing project in Antarctica for the last 11 years. The OE has been monitoring the geomagnetic activity for more than twenty years and also the ionospheric activity of the last ...
Rosa Ma Alsina-Pagès   +5 more
doaj   +1 more source

TAP: A High-Precision Network Timing Method Over Air Interface Based on Physical-Layer Signals

open access: yesIEEE Access, 2019
Absolute time synchronization (timing) is a constant demand in various fields. There are many timing techniques at present. They are mainly based on dedicated equipments such as GNSS or specific protocols such as NTP, PTP, SIB16, etc.
Chenyu Zhang   +5 more
doaj   +1 more source

DVB-RCS return link radio resource management for broadband satellite systems using fade mitigation techniques at ka band [PDF]

open access: yes, 2008
Current Broadband Satellite systems supporting DVB-RCS at Ku band have static physical layer in order not to complicate their implementation. However at Ka band frequencies and above an adaptive physical layer wherein the physical layer parameters are ...
Aroumont, Anbazhagan   +3 more
core   +1 more source

Machine Learning Tips and Tricks for Power Line Communications

open access: yesIEEE Access, 2019
A great deal of attention has been recently given to Machine Learning (ML) techniques in many different application fields. This paper provides a vision of what ML can do in Power Line Communications (PLC).
Andrea M. Tonello   +3 more
doaj   +1 more source

Digital Front End Technology for Long-Distance Power Line Communication

open access: yesZhongguo dianli, 2023
Since the power line communication (PLC) channel is not specifically designed for communication, there usually exists a large noise and/or a strong interference around the frequency band of a PLC system.
Hongjian GAO   +5 more
doaj   +1 more source

SecLight: A New and Practical VLC Eavesdropping-Resilient Framework for IoT Devices

open access: yesIEEE Access, 2019
The blooming of the Internet of Things (IoT) needs a communication infrastructure to allow connecting a wide range of devices. Visible light communication (VLC) provides an attractive solution for these IoT devices.
Xiangyu Liu   +3 more
doaj   +1 more source

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