hkr.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Prefetching schemes and performance analysis for TV on demand services
Acreo.
Lund University.
Högskolan Kristianstad, Sektionen för hälsa och samhälle, Avdelningen för Design och datavetenskap. Lund University.
Uppsala University.
Vise andre og tillknytning
2015 (engelsk)Inngår i: International Journal On Advances in Telecommunications, ISSN 1942-2601, E-ISSN 1942-2601, Vol. 8, nr 3&4, s. 162-172Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

TV-on-Demand services have become one of the most popular Internet applications that continuously attracts high user interest. With rapidly increasing user demands, the existing network conditions may not be able to ensure a low start-up delay of video playback. Prefetching has been broadly investigated to cope with the start-up latency problem, which is also known as user perceived latency. In this paper, two datasets from different IPTV providers are used to analyse the TV program request patterns. According to the results, we propose a prefetching scheme at the user end to preload videos before user requests. For both datasets, our prefetching scheme significantly improves the cache hit ratio compared to passive caching and we note that there is a potential to further improve prefetching performance by customizing prefetching schemes for different video categories. We further present a cost model to determine the optimal number of videos to prefetch. We also discuss if there is enough time for prefetching. Finally, more factors, which may have an impact onoptimizing prefetching performance, are further discussed, such as the jump patterns over different time in a day and the the distribution of each video’s viewing length.

sted, utgiver, år, opplag, sider
2015. Vol. 8, nr 3&4, s. 162-172
Emneord [en]
User perceived latency, prefetching, jump patterns over time, viewing fractions
HSV kategori
Identifikatorer
URN: urn:nbn:se:hkr:diva-15852OAI: oai:DiVA.org:hkr-15852DiVA, id: diva2:956585
Tilgjengelig fra: 2016-08-30 Laget: 2016-08-30 Sist oppdatert: 2017-11-21bibliografisk kontrollert

Open Access i DiVA

fulltext(1210 kB)49 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 1210 kBChecksum SHA-512
ef566d82ef3a9b8b57c63466323f31b2949ccd4b55651bd8500b9394c147fa3cfeb5b54377c1767a45a2856665648a8dbe86cc55e05be0b10211e6d893cdb29e
Type fulltextMimetype application/pdf

Personposter BETA

Arvidsson, Ake

Søk i DiVA

Av forfatter/redaktør
Arvidsson, Ake
Av organisasjonen
I samme tidsskrift
International Journal On Advances in Telecommunications

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 49 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 95 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf