A TCP-friendly congestion control to guarantee smoothness by slack term

Proceedings. 13th International Conference on Computer Communications and Networks (IEEE Cat. No.04EX969) Pub Date : 2004-10-11 DOI:10.1109/ICCCN.2004.1401642

Y. Lai, S. Chien

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引用次数: 9

Abstract

With the rapid advance of network technologies over the past decade, more and more real-time multimedia applications, such as telephony and video conference, are widely deployed in the Internet. These multimedia applications are commonly implemented using UDP because some characteristics of TCP, for example, the burst transmission and frequent window variation, are not suitable for them. However, since UDP does not employ any congestion control, the unfair treatment towards TCP occurs. For these reasons, a new concept, "TCP-friendliness" is advocated. A TCP-friendly flow shares bandwidth similar to competing TCP flows. In this paper, we present a new TCP-friendly congestion control, slack term, by patching TCP-friendly rate control (TFRC). Slack term limits the variation of sending rate to guarantee the smoothness, records the deficit or excess of bandwidth, and then returns it in the future to guarantee the friendliness. Simulation results show that our algorithm can enhance them with the smoother transmission rate and achieve the similar friendliness to TCP flows

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一种tcp友好的拥塞控制，通过松弛项保证平滑

近十年来，随着网络技术的飞速发展，越来越多的实时多媒体应用，如电话和视频会议，被广泛地部署在互联网上。这些多媒体应用通常使用UDP来实现，因为TCP的一些特性(如突发传输和频繁的窗口变化)不适合它们。然而，由于UDP不使用任何拥塞控制，对TCP的不公平待遇就发生了。基于这些原因，一个新的概念，“tcp友好”被提倡。TCP友好流与竞争的TCP流共享类似的带宽。本文通过修补tcp友好速率控制(TFRC)，提出了一种新的tcp友好拥塞控制——松弛项。松弛项限制发送速率的变化以保证平滑，记录带宽的不足或超出，并在将来返回以保证友好性。仿真结果表明，该算法可以在更平滑的传输速率下增强它们，并达到与TCP流相似的友好度

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings. 13th International Conference on Computer Communications and Networks (IEEE Cat. No.04EX969)

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