Results 11 to 20 of about 68,121 (257)

Exploring Delay Propagation Causality in Various Airport Networks with Attention-Weighted Recurrent Graph Convolution Method

open access: yesAerospace, 2023
Exploring the delay causality between airports and comparing the delay propagation patterns across different airport networks is critical to better understand delay propagation mechanisms and provide effective delay mitigation strategies.
Jiawei Kang   +4 more
doaj   +1 more source

EFFECTS OF MULTIPATH PROPAGATION CHANNEL IN TIGRIS RIVER

open access: yesJournal of Engineering and Sustainable Development, 2023
Tigris River is an environment of shallow waters because of its low depth and it has been identified as a multi-path channel. The underwater multi-path propagation leads to reverberation as well as fading, which causes large transmission loss.
Murad Shahadha Mahmood   +1 more
doaj   +1 more source

DAMAC: A Delay-Aware MAC Protocol for Ad Hoc Underwater Acoustic Sensor Networks

open access: yesSensors, 2021
In a channel shared by several nodes, the scheduling algorithm is a key factor to avoiding collisions in the random access-based approach. Commonly, scheduling algorithms can be used to enhance network performance to meet certain requirements. Therefore,
Ahmed Al Guqhaiman   +4 more
doaj   +1 more source

Data-Driven Modeling of Systemic Air Traffic Delay Propagation: An Epidemic Model Approach

open access: yesJournal of Advanced Transportation, 2020
To better understand the mechanism of air traffic delay propagation at the system level, an efficient modeling approach based on the epidemic model for delay propagation in airport networks is developed.
Shanmei Li   +4 more
doaj   +1 more source

Treatment Method for Multi-AUV Cooperative Positioning Underwater Acoustic Propagation Delay Based on IMM Algorithm

open access: yes水下无人系统学报, 2023
To address the delay problem of underwater acoustic detection and communication in a master-slave autonomous undersea vehicle(AUV) cooperative positioning system, a time-delay processing method based on an interacting multiple model(IMM) algorithm is ...
Shijie CHEN   +5 more
doaj   +1 more source

Relay Selection for Capacity Increase in Underwater Acoustic Sensor Network

open access: yesSensors, 2021
In long distance sensor nodes, propagation delay is the most crucial factor for the successful transmission of data packets in underwater acoustic sensors networks (UWAs). Therefore, to cope with the problem of propagation delay, we propose examining and
Ramsha Narmeen, Jaehak Chung
doaj   +1 more source

Exploring Topological Semi-Metals for Interconnects

open access: yesJournal of Low Power Electronics and Applications, 2023
The size of transistors has drastically reduced over the years. Interconnects have likewise also been scaled down. Today, conventional copper (Cu)-based interconnects face a significant impediment to further scaling since their electrical conductivity ...
Satwik Kundu   +7 more
doaj   +1 more source

Investigation of the Effect of Intra-Cavity Propagation Delay in Secure Optical Communication Using Chaotic Semiconductor Lasers

open access: yesPhotonics, 2019
The influence of intra-cavity propagation delay in message encoding and decoding using chaotic semiconductor lasers is numerically investigated. A message is encoded at the transmitter laser by a chaos shift keying scheme and is decoded at the receiver ...
Elumalai Jayaprasath   +7 more
doaj   +1 more source

Joint Algorithm for Multi-Hop Localization and Time Synchronization in Underwater Sensors Networks Using Single Anchor

open access: yesIEEE Access, 2021
In this study, an effort to synchronize and localize the underwater sensors simultaneously in a multi-hop environment is considered. Underwater Sensor Networks (UWSNs) has limited range and connectivity due to propagation delay and limited bandwidth.
Rehan Shams   +3 more
doaj   +1 more source

Analysis of flight delay propagation characteristics based on complex network propagation dynamics [PDF]

open access: yesJournal of Hebei University of Science and Technology
In order to address the problem that the existing susceptible-infected-recovered(SIR) model does not consider the impact of the topology of the airport network on the flight delay propagation, the topological characteristic index of the airport network ...
Xinsheng YANG, Xiaolong XIE, Ming WEI
doaj   +1 more source

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