Results 21 to 30 of about 2,423,413 (279)
A Glimpse of Physical Layer Decision Mechanisms: Facts, Challenges, and Remedies
IEEE Open Journal of the Communications Society, 2022 Communications are realized as a result of successive decisions at the physical layer, from modulation selection to multi-antenna strategy, and each decision affects the performance of the communication systems.
Selen Gecgel Cetin +3 more
doaj +1 more source
DVB-RCS return link radio resource management for broadband satellite systems using fade mitigation techniques at ka band [PDF]
, 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
Sensors, 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
IEEE 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
Physical Layer Definition for a Long-Haul HF Antarctica to Spain Radio Link
Remote 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
IEEE 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
UAV Swarm-Enabled Aerial CoMP: A Physical Layer Security Perspective [PDF]
, 2019 Unlike aerial base station enabled by a single unmanned aerial vehicle (UAV), aerial coordinated multiple points (CoMP) can be enabled by a UAV swarm. In this case, the management of multiple UAVs is important.
Chen, Yunfei +3 more
core +2 more sources
Machine Learning Tips and Tricks for Power Line Communications
IEEE 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
Zhongguo 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
Quantum Security for the Physical Layer [PDF]
, 2013 The physical layer describes how communication signals are encoded and transmitted across a channel. Physical security often requires either restricting access to the channel or performing periodic manual inspections.
Humble, Travis S.
core +2 more sources