A QoS-aware congestion control mechanism for DCCP
A QoS-aware congestion control mechanism for DCCP
复制标题
DCCP的QoS感知拥塞控制机制
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Zhijun Wang
中科院分区：
文献类型：
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作者：
Lei Ye;Zhijun Wang
数据报拥塞控制协议（DCCP）旨在为不可靠的应用提供拥塞控制，例如IP语音和IPTV。但是现有的DCCP拥塞控制机制不具备支持服务质量（QoS）的能力。本文旨在从理论上设计一种端到端QoS感知的DCCP拥塞控制机制。特别是，我们设计了一个端到端的流量控制机制，以支持实时延迟自适应和实时速率自适应应用。该机制具有几个可证明的属性，包括TCP友好性，稳定性和最优性。实验结果表明，该机制可以为实时应用提供最低速率保证，并保持较低的丢包率。
The Datagram Congestion Control Protocol (DCCP) was designed to provide congestion control for unreliable applications, such as voice-over-IP and IPTV. But the current congestion control mechanisms of DCCP do not have the ability to support Quality of Service (QoS) features. This paper aims to design an end-to-end QoS-aware congestion control mechanism for DCCP based on theory. In particular, we design an end-to-end traffic control mechanism to support Real-time Delay Adaptive and Real-time Rate Adaptive applications. The mechanism possesses several provable properties, including friendliness to TCP, stability, and optimality. The experimental results show that the proposed mechanism can provide minimum rate guarantee for real-time applications and maintain a lower packet drop ratio.