White Papers

TFMC: A TCP-Friendly Multiplexing Control Scheme for VoIP Flow Transmission

Tags: voice over ip, voip, real-time, ip, network

Overview This paper investigates the performance limitations in the case of a large number of long distance voice over IP calls originating from different sources and transported through a best-effort IP network. The paper focuses on the potentially negative effects of protocol header overhead, which is twice the voice payload generated by the high-compression audio codecs. These negative effects range from the inefficient use of bandwidth to the network congestion caused by the large number of short voice packets flowing into the IP network, which degrades the real-time transmission performance and creates a fairness problem because of TCP traffic being suppressed.

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Publisher: French National Institute for Research in Computer Science and Control
File Format: PDF
Date Published: Dec 27, 2007
Format: White Papers
Topics: TCP - IP, VoIP - IP Telephony, Bandwidth Issues

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