Results 91 to 100 of about 32,761 (304)

Performance evaluation of an efficient counter-based scheme for mobile ad hoc networks based on realistic mobility model [PDF]

, 2008
Flooding is the simplest and commonly used mechanism for broadcasting in mobile ad hoc networks (MANETs). Despite its simplicity, it can result in high redundant retransmission, contention and collision in the network, a phenomenon referred to as ...
Ould-Khaoua, M., Aminu, M., Abdulai, J., Mackenzie, L.M.   +3 more
core  

Broadcast-Based Communication in a Programming Environment for Novices

, 2018
This thesis proposes a model to make communication and processes in an object-oriented language accessible to novice ...
David S. Feinberg (5415329)
core   +1 more source

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, EarlyView.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

A scheme of combining DFO and channel estimation scheme for mobile OFDM systems

IET Communications
To reduce the impact of residual Doppler frequency offset (RDFO), a joint DFO estimation and CE scheme is proposed for the OFDM systems under the high‐speed mobile environment.
Lihua Yang, Yongqi Shao, Ao Chang, Bo Hu
doaj   +1 more source

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram, Luca Feltrin, Mustafa Ozger, Cicek Cavdar   +3 more
wiley   +1 more source

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin, Laurent Castanet, Laurent Féral, Xavier Boulanger   +3 more
wiley   +1 more source

Digital broadcasting – Challenges and opportunities for European community radio broadcasters

Telematics and Informatics, 2010
Access to broadcast infrastructure is vital for community radio services, however the switch-over from analogue to digital, as envisaged by European policy-makers, creates challenges for such stations. In this article, we will set out the general environment within which the transition to digital is occurring, illustrate the current state of the ...
Lawrie Hallett, Arne Hintz
openaire   +2 more sources

Path‐Based Deep Reinforcement Learning for On‐Board Routing in Satellite Constellation Networks

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Efficient usage of available network resources is a crucial factor for broadband services in interconnected satellite constellations. To meet required quality of service standards under heavy network loads, it is essential to optimize traffic distribution among the intersatellite links. To address this challenge, we propose an adaptive traffic
Manuel M. H. Roth, Thomas Jerkovits, Anupama Hegde, Thomas Delamotte, Andreas Knopp   +4 more
wiley   +1 more source

Modern mine communication technology and system

Gong-kuang zidonghua, 2013
The paper proposed coal mine communication technology system which was consisted of mine wired dispatching communication system, mine mobile communication system, mine broadcast communication system and mine rescue communication system.
SUN Ji-ping
doaj  

Mitigation of Interest Flooding Attack and Controlled Packet Propagation in Named Internet of Vehicles

IEEE Access
Traditional networks become more difficult and complex due to their location-based communication policies. Researchers have proposed a new way of communication to overcome issues of traditional networks named Named Data Networking (NDN).
Muhammad Umar Sattar, Rana Asif Rehman, Ahmad Arsalan, Byung-Seo Kim   +3 more
doaj   +1 more source