Cooperative Popularity-Aware MPEG-4/MPEG-7 Streaming Proxy System
Date Issued
2005-06
Date
2005-06
Author(s)
DOI
20060927122912335807
Abstract
Real-time multimedia services over network
greatly arouse users’ interests in multimedia objects. To
decrease the influence of instable network upon the quality
of real-time multimedia services and to reduce the traffic
loads of servers, we've implemented an MPEG-4/MPEG-7
streaming proxy system that can reduce client perceived
startup latency and efficiently improve the utilization of the
storage resources in streaming proxies. By distributing
information of cached data between neighboring proxies in
the same cluster, our cooperative streaming proxy system
can redirect a client's request to another suitable proxy, or
fetch-and-relay media objects if all proxies in the same
cluster do not cache the requested object. Moreover, a
popularity-aware caching policy is designed to make better
use of the cache capacity among a cluster of neighboring
streaming proxies; consequently, cache hit ratio can be
further improved. The performance evaluation of our system
is presented to demonstrate the improvements mentioned
abovel.
Subjects
Cooperative Streaming Proxies
Popularity-aware
Caching Policy
Caching Policy
MPEG-4/MPEG-7
RTSP/RTP
Publisher
臺北市:國立臺灣大學資訊工程學系
Type
other
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