End-to-End Data Delivery Reliability Model for Estimating and Optimizing the Link Quality of Industrial WSNs

2018 ◽  
Vol 15 (3) ◽  
pp. 1127-1137 ◽  
Author(s):  
Wei Sun ◽  
Xiaojing Yuan ◽  
Jianping Wang ◽  
Qiyue Li ◽  
Liangfeng Chen ◽  
...  
Keyword(s):  
Link Quality ◽  
Data Delivery ◽  
Reliability Model ◽  
Delivery Reliability ◽  
End To End

scholarly journals Weighted-DESYNC and Its Application to End-to-End Throughput Fairness in Wireless Multihop Network

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Ui-Seong Yu ◽  
Ji-Young Jung ◽  
Eutteum Kong ◽  
HyungSeok Choi ◽  
Jung-Ryun Lee
Keyword(s):  
Resource Allocation ◽  
Multihop Networks ◽  
Link Quality ◽  
Weight Factor ◽  
Multihop Network ◽  
Bottleneck Node ◽  
End To End ◽  
Node Problem ◽  
Wireless Multihop Network

The end-to-end throughput of a routing path in wireless multihop network is restricted by a bottleneck node that has the smallest bandwidth among the nodes on the routing path. In this study, we propose a method for resolving the bottleneck-node problem in multihop networks, which is based on multihop DESYNC (MH-DESYNC) algorithm that is a bioinspired resource allocation method developed for use in multihop environments and enables fair resource allocation among nearby (up to two hops) neighbors. Based on MH-DESYNC, we newly propose weighted-DESYNC (W-DESYNC) as a tool artificially to control the amount of resource allocated to the specific user and thus to achieve throughput fairness over a routing path. Proposed W-DESYNC employs the weight factor of a link to determine the amount of bandwidth allocated to a node. By letting the weight factor be the link quality of a routing path and making it the same across a routing path via Cucker-Smale flocking model, we can obtain throughput fairness over a routing path. The simulation results show that the proposed algorithm achieves throughput fairness over a routing path and can increase total end-to-end throughput in wireless multihop networks.

Quality-of-life assessment in the treatment of iatrogenic bile duct injuries: hepaticojejunostomy versus end-to-end biliary reconstructions

2012 ◽  
Vol 82 (12) ◽  
pp. 923-927 ◽  
Author(s):  
Beata Jabłońska ◽  
Marek Olakowski ◽  
Paweł Lampe ◽  
Zygmunt Górka ◽  
Łukasz Bułdak
Keyword(s):  
Quality Of Life ◽  
Bile Duct ◽  
Life Assessment ◽  
Quality Of Life Assessment ◽  
Bile Duct Injuries ◽  
End To End

Features of ultrasonic control of butt welded joints of polyethylene pipes

2020 ◽  
pp. 46-52
Author(s):  
N.P. Aleshin ◽  
D.M. Kozlov ◽  
L.YU. Mogilner
Keyword(s):  
Quality Control ◽  
Welded Joints ◽  
Ultrasonic Testing ◽  
Ultrasonic Inspection ◽  
Mechanical Tests ◽  
Ultrasonic Control ◽  
Lack Of Fusion ◽  
Polyethylene Pipes ◽  
End To End

The reliability of ultrasonic testing (UT) of the quality of welded joints of polyethylene pipelines, made end-to-end with a heated tool, is considered in comparison with mechanical tests and radiography. The greatest detection of solid defects is provided by ultrasonic inspection with the use of chord tipe probes (not less than 90 %). When detecting defects translucent for ultrasound (lack of penetration, lack of fusion, etc.), the reliability decreases to 70÷80 %. Keywords: welding, polyethylene pipeline, quality control, ultrasonic testing, chord tipe probe. [email protected]

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