Simulated performance of VoIP using DCCP CCID2 over large delay link networks

DCCP is gaining popularity as a new transport protocol for sending streaming multimedia contents in the Internet nowadays. As it is a new unreliable transport protocol which has built-in congestion control, DCCP ensures that there is no bandwidth monopoly by certain transport protocol.UDP has been...

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Main Authors: Awang Nor, Shahrudin, Hassan, Suhaidi, Almomami, Omar
Format: Book Section
Language:English
Published: Universiti Utara Malaysia 2008
Subjects:
Online Access:https://repo.uum.edu.my/id/eprint/2195/1/Simulated_Performance_of_VoIP_using_DCCP_over_Large_Delay_Li.pdf
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author Awang Nor, Shahrudin
Hassan, Suhaidi
Almomami, Omar
author_facet Awang Nor, Shahrudin
Hassan, Suhaidi
Almomami, Omar
author_sort Awang Nor, Shahrudin
collection UUM
description DCCP is gaining popularity as a new transport protocol for sending streaming multimedia contents in the Internet nowadays. As it is a new unreliable transport protocol which has built-in congestion control, DCCP ensures that there is no bandwidth monopoly by certain transport protocol.UDP has been proven that can eat up all the available bandwidth in the Internet while competing with other transport protocols such as TCP in carrying streaming audio and multimedia traffic in many situations. In this paper, we show that the performance of VoIP using DCCP is significantly affected by the size of initial slow-start threshold (ssthresh) over large delay links. All TCP congestion control implementations are required to support slow-start threshold implemented in DCCP’s TCP-like congestion control (CCID2). From our experiments, we found out that too small initial slow-start threshold value for large delay link makes the traffic throughput sent using DCCP requires longer time to become stable. The selection of suitable value of initial slow-start threshold is then vital for the performance of VoIP using DCCP over large delay link networks.
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spelling uum-21952011-02-20T07:50:55Z https://repo.uum.edu.my/id/eprint/2195/ Simulated performance of VoIP using DCCP CCID2 over large delay link networks Awang Nor, Shahrudin Hassan, Suhaidi Almomami, Omar TK Electrical engineering. Electronics Nuclear engineering DCCP is gaining popularity as a new transport protocol for sending streaming multimedia contents in the Internet nowadays. As it is a new unreliable transport protocol which has built-in congestion control, DCCP ensures that there is no bandwidth monopoly by certain transport protocol.UDP has been proven that can eat up all the available bandwidth in the Internet while competing with other transport protocols such as TCP in carrying streaming audio and multimedia traffic in many situations. In this paper, we show that the performance of VoIP using DCCP is significantly affected by the size of initial slow-start threshold (ssthresh) over large delay links. All TCP congestion control implementations are required to support slow-start threshold implemented in DCCP’s TCP-like congestion control (CCID2). From our experiments, we found out that too small initial slow-start threshold value for large delay link makes the traffic throughput sent using DCCP requires longer time to become stable. The selection of suitable value of initial slow-start threshold is then vital for the performance of VoIP using DCCP over large delay link networks. Universiti Utara Malaysia 2008 Book Section PeerReviewed application/pdf en https://repo.uum.edu.my/id/eprint/2195/1/Simulated_Performance_of_VoIP_using_DCCP_over_Large_Delay_Li.pdf Awang Nor, Shahrudin and Hassan, Suhaidi and Almomami, Omar (2008) Simulated performance of VoIP using DCCP CCID2 over large delay link networks. In: International Conference on Network Applications, Protocols, and Services 2008 (NetApps 2008), 21-22 November 2008, Executive Development Centre (EDC) Universiti Utara Malaysia. Universiti Utara Malaysia, pp. 1-7. ISBN 9789832078333 http://www.internetworks.my/NetApps2008/Proceedings/accepted%20paper/Simulated%20Performance%20of%20VoIP%20using%20DCCP%20over%20Large%20Delay%20Link%20Networks-NetApps2008.pdf
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Awang Nor, Shahrudin
Hassan, Suhaidi
Almomami, Omar
Simulated performance of VoIP using DCCP CCID2 over large delay link networks
title Simulated performance of VoIP using DCCP CCID2 over large delay link networks
title_full Simulated performance of VoIP using DCCP CCID2 over large delay link networks
title_fullStr Simulated performance of VoIP using DCCP CCID2 over large delay link networks
title_full_unstemmed Simulated performance of VoIP using DCCP CCID2 over large delay link networks
title_short Simulated performance of VoIP using DCCP CCID2 over large delay link networks
title_sort simulated performance of voip using dccp ccid2 over large delay link networks
topic TK Electrical engineering. Electronics Nuclear engineering
url https://repo.uum.edu.my/id/eprint/2195/1/Simulated_Performance_of_VoIP_using_DCCP_over_Large_Delay_Li.pdf
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