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Summary: RATE-DISTORTION OPTIMIZED ON-DEMAND MEDIA STREAMING WITH
SERVER DIVERSITY
Ali C. Begen, Yucel Altunbasak
School of Electrical and Computer Engineering
Georgia Institute of Technology
Atlanta, GA USA
Mehmet A. Begen
Centre for Operations Excellence
University of British Columbia
Vancouver, BC Canada
ABSTRACT
This paper studies the streaming of packetized media from mul-
tiple servers to a client over a lossy network. In particular, we
propose a client-driven rate-distortion optimal packet scheduling
algorithm that decides which packet(s) to be requested from which
server(s) at a given request opportunity. In doing so, the proposed
scheduling algorithm not only attains the maximal presentation
quality but also conforms to the rate constraints dictated by the
flow, window and congestion control mechanisms. The simulation
results clearly demonstrate the efficacy of the proposed algorithm
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