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Streaming Video over TCP with Receiver-Based Delay Control
Pai-Hsiang HSIAO H. T. KUNG Koan-Sin TAN
IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Internet Technology III)
Category: Streaming Service
video streaming, layered video, TCP, retransmission timeout, delay control,
Full Text: PDF(791.6KB)>>
Unicasting video streams over TCP connections is a challenging problem, because video sources cannot normally adapt to delay and throughput variations of TCP connections. This paper describes a method of extending TCP so that TCP connections can effectively carry hierarchically-encoded layered video streams, while being friendly to other competing connections. We call the method Receiver-based Delay Control (RDC). Under RDC, a TCP connection can slow down its transmission rate to avoid congestion by delaying ACK packet generation at the TCP receiver based on congestion notifications from routers. We present the principle behind RDC, argue that it is TCP-friendly, describe an implementation that uses 1-bit congestion notification from routers, and demonstrate by simulations its effectiveness in streaming hierarchically-encoded layered video.