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PhD Final Exam – Taylor Johnson

Dynamic and Dual Streaming Methods for H.264 Video and Parallel Performance Modeling

Traditional approaches to streaming H.264 video over a network typically rely on a single method of transport (i.e., reliable or unreliable) and/or use static values for parameters that can have a significant negative impact on the perceptual quality of the received video. In this work, we introduce a dynamic method for wireless channel selection during video streaming, and explore the latency and QoE improvements yielded by the FDSP dual streaming method. Additionally, we observe that handling the increased workload that results from these dynamic methods without a counterproductive impairment of streaming performance requires efficient use of the multiple cores typically present in both sender and receiver (or server and client). For this reason, we introduce a performance cost model which can be used to guide the parallelization of specific types of client or server-side streaming components - specifically, programs containing non-DOALL loops that have inter-iteration data dependences which constrain their parallelism.

Major Advisor: Ben Lee
Committee: Bella Bose
Committee: Thinh Nguyen
Committee: Ted Brekken
GCR: William Warnes

Friday, June 7, 2019 at 1:00pm to 3:00pm

Kelley Engineering Center, 1007
110 SW Park Terrace, Corvallis, OR 97331

Event Type

Lecture or Presentation

Event Topic

Research

Organization
Electrical Engineering and Computer Science
Contact Name

Calvin Hughes

Contact Email

calvin.hughes@oregonstate.edu

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