Results 31 to 40 of about 2,418,601 (257)

Asymptotic Multi-Layer Analysis of Wind Over Unsteady Monochromatic Surface Waves [PDF]

, 2013
Asymptotic multi-layer analyses and computation of solutions for turbulent flows over steady and unsteady monochromatic surface wave are reviewed, in the limits of low turbulent stresses and small wave amplitude.
Drullion, F., Hunt, J. C. R., Sajjadi, S. G.   +2 more
core   +3 more sources

POMDP-Based Throughput Maximization for Cooperative Communications Networks with Energy-Constrained Relay under Attack in the Physical Layer

Applied Sciences, 2018
In this paper, we investigate jamming attacks in the physical layer against cooperative communications networks, where a jammer tries to block the data communication between the source and destination.
Hoang Thi Huong Giang, Hiep Vu-Van, Insoo Koo   +2 more
doaj   +1 more source

Deep learning in physical layer communications: Evolution and prospects in 5G and 6G networks

IET Communications, 2023
With the rapid development of the communication industry in the fifth generation and the advance towards the intelligent society of the sixth generation wireless networks, traditional methods are unable to meet the ever‐growing demands for higher data ...
Chengchen Mao, Zongwen Mu, Qilian Liang, Ioannis Schizas, Chenyun Pan   +4 more
doaj   +1 more source

Techniques for Enhanced Physical-Layer Security

, 2010
Information-theoretic security--widely accepted as the strictest notion of security--relies on channel coding techniques that exploit the inherent randomness of propagation channels to strengthen the security of communications systems.
Barros, Joao, Pinto, Pedro C., Win, Moe Z.   +2 more
core   +1 more source

A Physical Layer Model for G3-PLC Networks Simulation [PDF]

, 2017
This work presents a model of the G3-PLC physical (PHY) layer tailored for network simulations. It allows simulating frequency selective channels with non-stationary colored noise.
Cortés, José Antonio, Guemes, Cristian, Sancho, David, Sanz, Alfredo   +3 more
core   +1 more source

Multi-Layered Energy Efficiency in LoRa-WAN Networks: A Tutorial

IEEE Access, 2022
Emerging Internet-of-Things (IoT) applications are driving increasing demand for advanced services in wireless networks, prompting the development of new technologies to address the associated challenges.
Imane Cheikh, Rachid Aouami, Essaid Sabir, Mohamed Sadik, Sebastien Roy   +4 more
doaj   +1 more source

The implementation and design of physical layer control for user equipment in 5G

Dianzi Jishu Yingyong, 2019
With more tasks physical layer needs to handle in 5G, the interaction between the physical layer and the high layer and the under layer is greatly increased.
Li Xiaowen, Jiang Yanan, Li Xiu
doaj   +1 more source

Multiplexing Services in 5G and Beyond: Optimal Resource Allocation Based on Mixed Numerology and Mini-Slots

IEEE Access, 2020
The Fifth Generation (5G) New Radio (NR) Physical Layer (PHY) is designed to successfully address diverse user and service requirements by providing a highly flexible framework. This flexibility is viable through a scalable numerology.
Ljiljana Marijanovic, Stefan Schwarz, Markus Rupp   +2 more
doaj   +1 more source

Physical-Layer Security over Correlated Erasure Channels

, 2011
We explore the additional security obtained by noise at the physical layer in a wiretap channel model setting. Security enhancements at the physical layer have been proposed recently using a secrecy metric based on the degrees of freedom that an attacker
Almeida, J., Barros, J., Harrison, W. K., McLaughlin, S. W.   +3 more
core   +1 more source

RECOMAC: a cross-layer cooperative network protocol for wireless ad hoc networks [PDF]

, 2012
A novel decentralized cross-layer multi-hop cooperative protocol, namely, Routing Enabled Cooperative Medium Access Control (RECOMAC) is proposed for wireless ad hoc networks.
Erkip, Elza, Gokturk, Sarper Muharrem, Gurbuz, Ozgur, Göktürk, Sarper Muharrem, Gürbüz, Özgür   +4 more
core   +2 more sources