Results 11 to 20 of about 17,195,316 (298)

Fisher-Information-Based Cooperative Sensor Node Pre-Selection for UWB-Aided GNSS-Denied UAV Swarm Localization Under Heterogeneous Ranging Noise [PDF]

open access: yesSensors
Ultra-wideband (UWB) inter-node ranging provides relative-distance constraints for cooperative localization in GNSS-denied UAV swarms, but dense candidate networks can exceed the available ranging slots, communication bandwidth, computation, and energy ...
Yanming Sun, Xiaoyan Du, Pihong Gong
doaj   +2 more sources

Link quality prediction based on random forest [PDF]

open access: yesTongxin xuebao, 2019
Link quality prediction is vital to the upper layer protocol design of wireless sensor networks.Selecting high quality links with the help of link quality prediction mechanisms can improve data transmission reliability and network communication ...
Linlan LIU, Shengrong GAO, Jian SHU
doaj   +4 more sources

Link level modelling techniques for analysing the configuration of link adaptation algorithms in mobile radio networks [PDF]

open access: yes, 2004
The operation of Link Adaptation algorithms is based on channel quality estimates. It is therefore important to analyse the performance of such algorithms with link level models that properly capture the channel conditions and dynamics. Previous research
Gozalvez, J., Dunlop, J.
core   +3 more sources

On the importance of using appropriate link-to-system interfaces for the study of link adaptation [PDF]

open access: yes, 2003
Link Adaptation is an adaptive radio link technique that selects a transport mode, from a set of predefined modes of varying robustness, depending on the channel quality conditions and dynamics.
Gozalvez, J., Dunlop, J.
core   +3 more sources

Link Quality Prediction Based on Gate Recurrent Unit

open access: yes工程科学与技术, 2022
In wireless sensor networks, nodes are susceptible to noise interference, which makes the transmission link quality worse, leading to packet loss and retransmission, thus speeding up the energy consumption of nodes and reducing the network life.
Linlan LIU   +3 more
doaj  

IP-Level Satellite Link Emulation with KauNet [PDF]

open access: yes, 2009
Distributed applications and transport protocols communicating over a satellite link may react very strongly to conditions specific to that kind of link.
Garcia, Johan,   +12 more
core   +1 more source

A novel ANFIS-controlled customized UPQC device for power quality enhancement

open access: yesJournal of Electrical Systems and Information Technology, 2023
Power quality is crucial for the reliable and efficient operation of domestic and industrial loads. Nonlinear power electronic converter loads have increased in usage, which has led to a decline in both voltage and current quality.
S. Srimatha   +2 more
doaj   +1 more source

Quality of life in older adults with ADHD: links to ADHD symptom levels and executive functioning deficits [PDF]

open access: yesNordic Journal of Psychiatry, 2019
Purpose and aim: The overall aim of the present study was to examine quality of life in attention deficit hyperactivity disorder (ADHD) patients age ≥60 years. First, we compared older adults with ADHD to both healthy controls of the same age and younger adults with ADHD.
Lisa B. Thorell   +2 more
openaire   +2 more sources

Effectiveness of a school-community linked program on physical activity levels and health-related quality of life for adolescent girls [PDF]

open access: yesBMC Public Health, 2014
This study evaluated the effectiveness of a school-community program on Health-Related Quality of Life (HRQoL; the primary outcome), physical activity (PA), and potential mediators of PA among adolescent girls living in low-socioeconomic rural/regional settings.The study was a cluster-randomized controlled trial.
Casey, Meghan   +5 more
openaire   +5 more sources

QUALITY OF EXPERIENCE FOR VOICE OVER INTERNET PROTOCOL (VoIP)

open access: yesWasit Journal of Engineering Sciences, 2023
Today, the service of Voice over Internet Protocol or (VoIP) is one of the most used service around the globe in many fields, especially with video conferencing applications. Different applications and also many communications companies around the world
Asmaa Ali Jaish   +1 more
doaj   +1 more source

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