Scalable TCP-friendly video distribution for heterogeneous clients

Michael Zink; Carsten Griwodz; Jens Schmitt; Ralf Steinmetz

doi:10.1117/12.483915

7 January 2003 Scalable TCP-friendly Video Distribution for Heterogeneous Clients

Michael Zink, Carsten Griwodz, Jens Schmitt, Ralf Steinmetz

Proceedings Volume 5019, Multimedia Computing and Networking 2003; (2003) https://doi.org/10.1117/12.483915
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

This paper investigates an architecture and implementation for the use of a TCP-friendly protocol in a scalable video distribution system for hierarchically encoded layered video. The design supports a variety of heterogeneous clients, because recent developments have shown that access network and client capabilities differ widely in today's Internet. The distribution system presented here consists of videos servers, proxy caches and clients that make use of a TCP-friendly rate control (TFRC) to perform congestion controlled streaming of layer encoded video. The data transfer protocol of the system is RTP compliant, yet it integrates protocol elements for congestion control with protocols elements for retransmission that is necessary for lossless transfer of contents into proxy caches. The control protocol RTSP is used to negotiate capabilities, such as support for congestion control or retransmission. By tests performed with our experimental platform in a lab test and over the Internet, we show that congestion controlled streaming of layer encoded video through proxy caches is a valid means of supporting heterogeneous clients. We show that filtering of layers depending on a TFRC-controlled permissible bandwidth allows the preferred delivery of the most relevant layers to end-systems while additional layers can be delivered to the cache server. We experiment with uncontrolled delivery from the proxy cache to the client as well, which may result in random loss and bandwidth waste but also a higher goodput, and compare these two approaches.

Citation Download Citation

Michael Zink, Carsten Griwodz, Jens Schmitt, and Ralf Steinmetz "Scalable TCP-friendly Video Distribution for Heterogeneous Clients", Proc. SPIE 5019, Multimedia Computing and Networking 2003, (7 January 2003); https://doi.org/10.1117/12.483915

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available