Theoretical Models for Video on Demand Services on Peer-to-Peer Networks
Peer-to-peer networks (P2Ps) are becoming more and more popular in video content delivery services, such as TV broadcast and Video on Demand (VoD), thanks to their scalability feature. Such characteristic allows for higher numbers of simultaneous users at a given server load and bandwidth with respe...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Digital Multimedia Broadcasting |
| Online Access: | http://dx.doi.org/10.1155/2009/263936 |
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| _version_ | 1832552328596553728 |
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| author | Giovanni Branca Thomas Schierl Luigi Atzori |
| author_facet | Giovanni Branca Thomas Schierl Luigi Atzori |
| author_sort | Giovanni Branca |
| collection | DOAJ |
| description | Peer-to-peer networks (P2Ps) are becoming more and more popular in video content delivery services, such as TV broadcast and Video on Demand (VoD), thanks to their scalability feature. Such characteristic allows for higher numbers of simultaneous users at a given server load and bandwidth with respect to alternative solutions. However, great efforts are still required to study and design reliable and QoS-guaranteed solutions. In this paper, within the scenario of P2P-based VoD services, we study the phenomenon of peer churns and propose four models of the peer behaviour to evaluate its impact on the system performance, which are based on the Gilbert-Elliot chain, the fluidic representation of the user behavior, and a queuing analysis of the system. The models are compared by computing the resources the system has to add on top of the P2P network to satisfy all the download requests. Simulations show important relationships between playback buffer length, peer request rate, peer average lifetime, and server upload rate. |
| format | Article |
| id | doaj-art-dbd92f6980c341a9a7aa8efc8ee473db |
| institution | Kabale University |
| issn | 1687-7578 1687-7586 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Digital Multimedia Broadcasting |
| spelling | doaj-art-dbd92f6980c341a9a7aa8efc8ee473db2025-02-03T05:59:07ZengWileyInternational Journal of Digital Multimedia Broadcasting1687-75781687-75862009-01-01200910.1155/2009/263936263936Theoretical Models for Video on Demand Services on Peer-to-Peer NetworksGiovanni Branca0Thomas Schierl1Luigi Atzori2Department of Electrical and Electronic Engineering, University of Cagliari, 09123 Cagliari, ItalyFraunhofer Institute for Telecommunications, Heinrich Hertz Institut, 10587 Berlin, GermanyDepartment of Electrical and Electronic Engineering, University of Cagliari, 09123 Cagliari, ItalyPeer-to-peer networks (P2Ps) are becoming more and more popular in video content delivery services, such as TV broadcast and Video on Demand (VoD), thanks to their scalability feature. Such characteristic allows for higher numbers of simultaneous users at a given server load and bandwidth with respect to alternative solutions. However, great efforts are still required to study and design reliable and QoS-guaranteed solutions. In this paper, within the scenario of P2P-based VoD services, we study the phenomenon of peer churns and propose four models of the peer behaviour to evaluate its impact on the system performance, which are based on the Gilbert-Elliot chain, the fluidic representation of the user behavior, and a queuing analysis of the system. The models are compared by computing the resources the system has to add on top of the P2P network to satisfy all the download requests. Simulations show important relationships between playback buffer length, peer request rate, peer average lifetime, and server upload rate.http://dx.doi.org/10.1155/2009/263936 |
| spellingShingle | Giovanni Branca Thomas Schierl Luigi Atzori Theoretical Models for Video on Demand Services on Peer-to-Peer Networks International Journal of Digital Multimedia Broadcasting |
| title | Theoretical Models for Video on Demand Services on Peer-to-Peer Networks |
| title_full | Theoretical Models for Video on Demand Services on Peer-to-Peer Networks |
| title_fullStr | Theoretical Models for Video on Demand Services on Peer-to-Peer Networks |
| title_full_unstemmed | Theoretical Models for Video on Demand Services on Peer-to-Peer Networks |
| title_short | Theoretical Models for Video on Demand Services on Peer-to-Peer Networks |
| title_sort | theoretical models for video on demand services on peer to peer networks |
| url | http://dx.doi.org/10.1155/2009/263936 |
| work_keys_str_mv | AT giovannibranca theoreticalmodelsforvideoondemandservicesonpeertopeernetworks AT thomasschierl theoreticalmodelsforvideoondemandservicesonpeertopeernetworks AT luigiatzori theoreticalmodelsforvideoondemandservicesonpeertopeernetworks |