TY - GEN
T1 - Caching video objects
T2 - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002
AU - Hartanto, Felix
AU - Kangasharju, Jussi
AU - Reisslein, Martin
AU - Ross, Keith W.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Because Internet access rates are highly heterogeneous, many video content providers today make available different versions of the videos, with each version encoded at a different rate. Multiple video versions, however, require more server storage and may also dramatically impact cache performance in a traditional cache or in a CDN server. An alternative to versions is layered encoding, which can also provide multiple quality levels. Layered encoding requires less server storage capacity and may be more suitable for caching; but it typically increases transmission bandwidth due to encoding overhead. In this paper we compare video streaming of multiple versions with that of multiple layers in a caching environment. We examine caching and distribution strategies that use both versions and layers. Our analytical results indicate that mixed distribution/caching strategies provide the best overall performance.
AB - Because Internet access rates are highly heterogeneous, many video content providers today make available different versions of the videos, with each version encoded at a different rate. Multiple video versions, however, require more server storage and may also dramatically impact cache performance in a traditional cache or in a CDN server. An alternative to versions is layered encoding, which can also provide multiple quality levels. Layered encoding requires less server storage capacity and may be more suitable for caching; but it typically increases transmission bandwidth due to encoding overhead. In this paper we compare video streaming of multiple versions with that of multiple layers in a caching environment. We examine caching and distribution strategies that use both versions and layers. Our analytical results indicate that mixed distribution/caching strategies provide the best overall performance.
UR - http://www.scopus.com/inward/record.url?scp=84908218476&partnerID=8YFLogxK
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U2 - 10.1109/ICME.2002.1035392
DO - 10.1109/ICME.2002.1035392
M3 - Conference contribution
AN - SCOPUS:84908218476
T3 - Proceedings - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002
SP - 45
EP - 48
BT - Proceedings - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 26 August 2002 through 29 August 2002
ER -