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Title:
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A PERFORMANCE COMPARISON OF DCCP, CTCP, AND CUBIC, USING VOIP AND CBR TRAFFIC PATTERNS |
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Author(s):
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Priscila Doria, Marco Aurélio Spohn |
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ISBN:
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978-972-8939-25-0 |
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Editors:
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Bebo White, Pedro Isaías and Diana Andone |
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Year:
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2010 |
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Edition:
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Single |
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Keywords:
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DCCP is a prominent transport protocol that has attracted the attention of the scientific community for its rapid progress and good results. Previous works |
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Type:
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Full Paper |
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First Page:
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211 |
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Last Page:
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218 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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DCCP is a prominent transport protocol that has attracted the attention of the scientific community for its rapid progress and good results. Previous works have compared the performance of DCCP with standard transport protocols, mostly through simulation, assuming a single protocol per link and only using the constant bit rate traffic pattern. In this paper, we evaluate the performance of two DCCP variants with highly representative TCP variants: CTCP and CUBIC. The first one is the TCP variant adopted in the Microsoft Windows Server 2008, and the second one is the TCP variant adopted in the Linux kernel. In the proposed scenarios, the protocols fight for the same link in contention. Results show that DCCP CCID2 performs better than DCCP CCID3 in scenarios with contention, due to the significantly better fairness of DCCP CCID3. In addition to that, even though CUBIC has been shown to have an aggressive congestion control performing better with CBR traffic, results show that CUBIC suffers with the on/off traffic pattern of VoIP applications. Meanwhile, CTCP is outperformed by DCCP and CUBIC in most scenarios. |
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