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A generalised cost-aware caching scheme for caching continuous media objects in best-effort network environments

Lau, W. H. O., Kumar, M. and Venkatesh, S. 2002, A generalised cost-aware caching scheme for caching continuous media objects in best-effort network environments, in IWDC 2002 : Distributed computing : mobile and wireless computing : 4th international workshop proceedings, Springer, Berlin, Germany, pp. 12-23, doi: 10.1007/3-540-36385-8_2.

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Title A generalised cost-aware caching scheme for caching continuous media objects in best-effort network environments
Author(s) Lau, W. H. O.
Kumar, M.
Venkatesh, S.
Conference name International Workshop on Distributed Computing (4th : 2002 : Calcutta, India)
Conference location Calcutta, India
Conference dates 28-31 Dec. 2002
Title of proceedings IWDC 2002 : Distributed computing : mobile and wireless computing : 4th international workshop proceedings
Editor(s) Das, Sajal K.
Bhattacharya, Swapan
Publication date 2002
Conference series International Workshop on Distributed Computing
Start page 12
End page 23
Total pages 12
Publisher Springer
Place of publication Berlin, Germany
Keyword(s) caching
continuous media
GD-multi
QoS
wired best-effort networks
Summary In this paper, we investigate the potential of caching to improve QoS in the context of continuous media applications over wired best-effort networks. We propose the use of a flexible caching scheme, called GD-Multi in caching continuous media (CM) objects. An important novel feature of our scheme is the provision of user or system administrator inputs in determining the cost function. Based on the proposed flexible cost function, Multi, an improvised Greedy Dual (GD) replacement algorithm called GD-multi (GDM) has been developed for layered multi-resolution multimedia streams. The proposed Multi function takes receiver feedback into account. We investigate the influence of parameters such as loss rate, jitter, delay and area in determining a proxy’s cache contents so as to enhance QoS perceived by clients. Simulation studies show improvement in QoS perceived at the clients in accordance to supplied optimisation metrics. From an implementation perspective, signalling requirements for carrying QoS feedback are minimal and fully compatible with existing RTSP-based Internet applications.
ISBN 354000355X
ISSN 0302-9743
Language eng
DOI 10.1007/3-540-36385-8_2
Field of Research 089999 Information and Computing Sciences not elsewhere classified
Socio Economic Objective 970108 Expanding Knowledge in the Information and Computing Sciences
HERDC Research category E1.1 Full written paper - refereed
Copyright notice ©2002, Springer-Verlag Berlin Heidelberg
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044852

Document type: Conference Paper
Collection: School of Information Technology
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