Dynamic buffer management scheme based on rate estimation in packet-switched networks

Abstract-- While traffic volume of real-time applications is rapidly increasing, current routers do not guarantee minimum QoS values of fairness and they drop packets in random fashion. If routers provide a minimum QoS, resulting a less delay, reduced delay-jitter, more fairness, and smooth sending rates, TCP-Friendly Rate Control (TFRC) can be adopted for realtime applications. We propose a dynamic buffer management scheme that meets the requirements described above, and can be applied to TCP flow and to data flow for transfer of real-time applications. The proposed scheme consists of a virtual threshold function, an accurate and stable per-flow rate estimation, and a per-flow exponential drop probability. We discuss how this scheme motivates real-time applications to adopt TCP-Friendly Rate Control.

• Type: Journal
• Year: 2002
• Where: CN
• Authors: Jeong-woo Cho, Dong-Ho Cho
• Keywords: CN 2002, Minimum Qos Values, Real-time Applications, TCP-Friendly Rate Control