Oregon State University

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PhD Oral Preliminary Examination – Arul Dhamodaran


Friday, February 10, 2017 9:00 AM - 11:00 AM

Adaptive Bitstream Prioritization for Dual TCP/UDP Streaming of HD Video
Flexible Dual-TCP/UDP Streaming Protocol with Bit- stream Prioritization (FDSP-BP) is a new method for streaming H.264-encoded 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 TCP rebuffering and 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.

Major Advisor: Ben Lee
Committee: Bella Bose
Committee: Thinh Nguyen
Committee: Huaping Liu
GCR: Leonard Coop


Kelley Engineering Center (campus map)
2057
Nicole Thompson
1 541 737 3617
Nicole.Thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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