Enhancing DCCP congestion control mechanism for long delay link

Most of the multimedia applications use the User Datagram Protocol (UDP) as a transport layer protocol because it is suitable for the delivery of multimedia data over the Internet.However, the use of UDP could endanger the stability of the network because there is no congestion control applied.To a...

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Main Authors: Awang Nor, Shahrudin, Hassan, Suhaidi, Ghazali, Osman, Omar, Mohd. Hasbullah
Format: Conference or Workshop Item
Language:English
Published: 2012
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Online Access:http://repo.uum.edu.my/12706/1/06.pdf
http://repo.uum.edu.my/12706/
http://dx.doi.org/10.1109/ISTT.2012.6481604
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spelling my.uum.repo.127062014-11-16T01:02:39Z http://repo.uum.edu.my/12706/ Enhancing DCCP congestion control mechanism for long delay link Awang Nor, Shahrudin Hassan, Suhaidi Ghazali, Osman Omar, Mohd. Hasbullah TK Electrical engineering. Electronics Nuclear engineering Most of the multimedia applications use the User Datagram Protocol (UDP) as a transport layer protocol because it is suitable for the delivery of multimedia data over the Internet.However, the use of UDP could endanger the stability of the network because there is no congestion control applied.To a certain extent, the network can collapse if too many applications deliberately use this protocol.Subsequently, instead of using the UDP, the applications have choices to use the Datagram Congestion Control Protocol (DCCP), which has a built-in congestion control that can provide a better network.Nevertheless, the congestion control mechanism in the Congestion Control Identifier (CCID)-2 TCP-like can cause problems when delivering multimedia data over a long delay link.To alleviate the problems, such as longer time taken for achieving maximum throughput, and throughput fluctuation during a congestion avoidance phase, two approaches have been used, i.e. setting of an appropriate slow-start threshold value and adjusting congestion window during a congestion avoidance phase.“TCP-like Threshold Window (TCP-like TW)” has been developed and modeled in the Network Simulator 2 (ns-2).For a long delay link, the TCP-like TW congestion control mechanism is able to minimize the time taken to achieve the maximum throughput. It also can smooth the fluctuation of throughput after achieving the maximum throughput. 2012 Conference or Workshop Item PeerReviewed application/pdf en http://repo.uum.edu.my/12706/1/06.pdf Awang Nor, Shahrudin and Hassan, Suhaidi and Ghazali, Osman and Omar, Mohd. Hasbullah (2012) Enhancing DCCP congestion control mechanism for long delay link. In: 1st IEEE International Symposium on Telecommunication Technologies, 26-28 Nov. 2012, Kuala Lumpur. http://dx.doi.org/10.1109/ISTT.2012.6481604 doi:10.1109/ISTT.2012.6481604
institution Universiti Utara Malaysia
building UUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Utara Malaysia
content_source UUM Institutionali Repository
url_provider http://repo.uum.edu.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Awang Nor, Shahrudin
Hassan, Suhaidi
Ghazali, Osman
Omar, Mohd. Hasbullah
Enhancing DCCP congestion control mechanism for long delay link
description Most of the multimedia applications use the User Datagram Protocol (UDP) as a transport layer protocol because it is suitable for the delivery of multimedia data over the Internet.However, the use of UDP could endanger the stability of the network because there is no congestion control applied.To a certain extent, the network can collapse if too many applications deliberately use this protocol.Subsequently, instead of using the UDP, the applications have choices to use the Datagram Congestion Control Protocol (DCCP), which has a built-in congestion control that can provide a better network.Nevertheless, the congestion control mechanism in the Congestion Control Identifier (CCID)-2 TCP-like can cause problems when delivering multimedia data over a long delay link.To alleviate the problems, such as longer time taken for achieving maximum throughput, and throughput fluctuation during a congestion avoidance phase, two approaches have been used, i.e. setting of an appropriate slow-start threshold value and adjusting congestion window during a congestion avoidance phase.“TCP-like Threshold Window (TCP-like TW)” has been developed and modeled in the Network Simulator 2 (ns-2).For a long delay link, the TCP-like TW congestion control mechanism is able to minimize the time taken to achieve the maximum throughput. It also can smooth the fluctuation of throughput after achieving the maximum throughput.
format Conference or Workshop Item
author Awang Nor, Shahrudin
Hassan, Suhaidi
Ghazali, Osman
Omar, Mohd. Hasbullah
author_facet Awang Nor, Shahrudin
Hassan, Suhaidi
Ghazali, Osman
Omar, Mohd. Hasbullah
author_sort Awang Nor, Shahrudin
title Enhancing DCCP congestion control mechanism for long delay link
title_short Enhancing DCCP congestion control mechanism for long delay link
title_full Enhancing DCCP congestion control mechanism for long delay link
title_fullStr Enhancing DCCP congestion control mechanism for long delay link
title_full_unstemmed Enhancing DCCP congestion control mechanism for long delay link
title_sort enhancing dccp congestion control mechanism for long delay link
publishDate 2012
url http://repo.uum.edu.my/12706/1/06.pdf
http://repo.uum.edu.my/12706/
http://dx.doi.org/10.1109/ISTT.2012.6481604
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score 13.144533