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Adaptive Bitstream Prioritization for Dual TCP/UDP Streaming of HD Video

Authors:
Arul N Dhamodaran
Mohammed Sinky
Ben Lee

Keywords: Bitstream Prioritization; HD Video Streaming; TCP; UDP.

Abstract:
Flexible Dual-TCP/UDP Streaming Protocol with Bit- stream Prioritization (FDSP-BP) is a new method for streaming H.264-encoded High-definition (HD) video over wireless networks. This paper presents a novel technique to adaptively modify the Bitstream prioritization (BP) parameter based on network conditions. This technique selects the maximum BP value that satisfies the Transmission Control Protocol (TCP) rebuffering and User Datagram Protocol (UDP) packet loss rate constraints for each substream. This is achieved by passively estimating the UDP packet loss ratio and TCP rebuffering time on the sender side based on parameters, such as TCP Roundtrip Time (RTT), queue dispersal rate, peak delay, etc. Our simulation results show that FDSP with Adaptive-BP is able to significantly outperform FDSP- BP with static BP values and pure-TCP in terms of rebuffering time, and FDSP-BP with fixed BP values and pure-UDP in terms of packet loss. The end result is a better overall viewing experience during network congestion.

Pages: 35 to 40

Copyright: Copyright (c) IARIA, 2015

Publication date: November 15, 2015

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-439-8

Location: Barcelona, Spain

Dates: from November 15, 2015 to November 20, 2015