| Presentation | 2009-05-21 A DCCP Congestion Control Mechanism for Guaranteeing Required Throughput Hiroyasu OBATA, Kenji ISHIDA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Real time applications need to guarantee the required throughput stably. Although UDP has been used as a transport protocol for real time applications and tends to guarantee the required throughput, UDP does not have congestion control mechanism. Thus, it is possible to lead to a serious problem such as a congestion collapse, if the number of UDP traffic that tends to guarantee the required throughput becomes larger. In order to solve the problem, DCCP (Datagram Congestion Control Protocol) has been developed. TFRC (TCP Friendly Rate Control) is used as one of congestion control method in DCCP. TFRC provides a TCP-friendly sending rate. However, DCCP would not obtain the required throughput because of TFRC's TCP-friendly control. Thus, TFRC in DCCP appears to lose UDP's feature of guaranteeing the required throughput. This paper modifies DCCP congestion control method in order to guarantee the required throughput and to achieve a good TCP friendliness. As the result of simulation experiments, we found that the proposed method can guarantee the required throughput in a certain situation. In addition, we found that proposed method is more friendly for background TCP than UDP when short-lived flows coexist (it is published that a large majority among the TCP flows in the Internet are short-lived flows). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DCCP congestion control mechanism / Guaranteeing throughput / QoS |
| Paper # | NS2009-19 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2009/5/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Network Systems(NS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A DCCP Congestion Control Mechanism for Guaranteeing Required Throughput |
| Sub Title (in English) | |
| Keyword(1) | DCCP congestion control mechanism |
| Keyword(2) | Guaranteeing throughput |
| Keyword(3) | QoS |
| 1st Author's Name | Hiroyasu OBATA |
| 1st Author's Affiliation | Graduate School of Information Sciences, Hiroshima City University() |
| 2nd Author's Name | Kenji ISHIDA |
| 2nd Author's Affiliation | Graduate School of Information Sciences, Hiroshima City University |
| Date | 2009-05-21 |
| Paper # | NS2009-19 |
| Volume (vol) | vol.109 |
| Number (no) | 36 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |