Tcp Ip Media Transmissions
Media-Friendliness of A Slowly-Responsive Congestion
Control Protocol
Zhiheng Wang
Dept. of EECS
University of Michigan
Ann Arbor, MI 48109
Sujata Banerjee
Internet Systems & Storage Lab
Hewlett-Packard Laboratories
Palo Alto, CA 94304
Sugih Jamin
Dept. of EECS
University of Michigan
Ann Arbor, MI 48109
ABSTRACT
Streaming media transfers over the Internet are expected to behave
in a TCP-friendly manner while reacting slower to congestion than
TCP. For this purpose, a number of slowly-responsive congestion
control protocols have been developed. In this paper, we present
our study on the media-friendliness of TFRC, one of the recently
developed slowly-responsive congestion control mechanisms. With
both simulation and Internet experiments, we show that TFRC is
not necessarily smooth enough to be "media-friendly". We also
discuss our approach to improve a congestion control mechanism's
media-friendliness.
Categories and Subject Descriptors
C.2.2 [Computer-Communication Networks]: Network Protocols
—Protocol Verification
General Terms
Performance, Design
Keywords
TCP-Friendly congestion control, performance evaluation
1. INTRODUCTION
With emerging advanced technologies on both end hosts and network
connections, the deployment of multi-media applications over
the Internet has increased rapidly in recent years [1, 2, 3]. Media
content can be disseminated over the Internet through bulk data
transfer or streaming. In this paper we concentrate on streaming
media transfers.
The implication of streaming is that network sending rate must
be closely matched to the data generation rate and the rate at which
the data is consumed by the client application. If these rates do not
match,...
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