Application-aware buffer management: new metrics and techniques

TitleApplication-aware buffer management: new metrics and techniques
Publication TypeJournal Article
Year of Publication2005
AuthorsBai, Y., and M. R. Ito
JournalBroadcasting, IEEE Transactions on
Pagination114 - 121
Date Publishedmar.
Keywordsapplication-aware buffer management, buffer storage, compressed video, data compression, IP network, IP networks, packet loss, perceived video quality, QoS, quality of service, service fairness, telecommunication network management, video coding, video transmission

An important issue for video transmission over IP networks is preservation of perceived video quality despite packet loss. Packet loss can be detrimental to compressed video. However, reducing packet loss to a very low level is difficult with current loss control techniques. Furthermore, even a very low objective loss probability can still seriously distort perceived video quality. This paper presents two buffer management schemes using video characteristics. They increase maximum loss tolerance for a desired level of video quality, providing better quality at equal loss ratios, when compared to a conventional buffer management scheme. Meanwhile, service fairness and network efficiency are also improved.


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