تطوير متحكم تكيفي AWNPID لتحسين إدارة الرتل الفعال (AQM)
Other Title(s)
Development of adaptive controller AWNPID for Improving active queue management (AQM)
Joint Authors
حسن جليل حسن
دريعي، فاروق
القرعاوي، صالح مهدي
Source
مجلة جامعة دمشق للعلوم الهندسية
Issue
Vol. 29, Issue 2 (31 Dec. 2013), pp.209-227, 19 p.
Publisher
Publication Date
2013-12-31
Country of Publication
Syria
No. of Pages
19
Main Subjects
Electronic engineering
Mechanical Engineering
Abstract EN
Internet represents a shared resource, wherein users contend for the finite network bandwidth.
Contention among independent user demands can result in congestion, which, in turn, leads to long queuing delays, packet losses or both.
Congestion control regulates the rate at which traffic sources inject packets into a network to ensure high bandwidth utilization while avoiding network congestion.
In the current Internet, there are two mechanisms which deal with congestion, the end-to-end mechanism which is achieved by the Transmission Control Protocol (TCP) and the intermediate nodes algorithms such as Active Queue Management (AQM) in routers.
In this research, an adaptive wavelet network PID (AWNPID) controller is developed for active queue management (AQM) in an end-to-end TCP network.
It is based wavelet network with an infinite impulse response (IIR) recurrent structure.
The IIR is combined by cascading the network to provide double local structure resulting in improving speed of learning.
PI and PID algorithms have been used for AQM.
But these algorithms show weakness in the detection and control of congestion under dynamically changing network situations.
So, AWNPID controller is designed to overcome these problems.
It adaptively controls the dropping probability of packets by training wavelet network parameters (weight, dilation, translation, and feedforward and feedback IIR coefficients), revise these parameters online by LMS learning rule, and then, tune PID controller coefficients according to wavelet network output.
The contribution of this pa per is represented by inserting a new program in C++ language into NS2-simulator (version 2.27) bodywork to enable the simulator simulates computer network by both, AWNPID and PID controllers in addition to PI controller which is built in the simulator.
American Psychological Association (APA)
حسن جليل حسن ودريعي، فاروق والقرعاوي، صالح مهدي. 2013. تطوير متحكم تكيفي AWNPID لتحسين إدارة الرتل الفعال (AQM). مجلة جامعة دمشق للعلوم الهندسية،مج. 29، ع. 2، ص ص. 209-227.
https://search.emarefa.net/detail/BIM-751035
Modern Language Association (MLA)
حسن جليل حسن....[و آخرون]. تطوير متحكم تكيفي AWNPID لتحسين إدارة الرتل الفعال (AQM). مجلة جامعة دمشق للعلوم الهندسية مج. 29، ع. 2 (2013)، ص ص. 209-227.
https://search.emarefa.net/detail/BIM-751035
American Medical Association (AMA)
حسن جليل حسن ودريعي، فاروق والقرعاوي، صالح مهدي. تطوير متحكم تكيفي AWNPID لتحسين إدارة الرتل الفعال (AQM). مجلة جامعة دمشق للعلوم الهندسية. 2013. مج. 29، ع. 2، ص ص. 209-227.
https://search.emarefa.net/detail/BIM-751035
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 226
Record ID
BIM-751035