Authors:
Leandro Souza
1
;
Xiaoyuan Yang Javier Balladini
1
;
Ana Ripoll
1
and
Fernando Cores
2
Affiliations:
1
Computer Architecture and Operating System, Universitat Autònoma de Barcelona, Spain
;
2
Computer Science and Industrial Engineering, Universitat de Lleida, Spain
Keyword(s):
On-Demand Media Streaming, Peer-to-Peer systems, Internet VoD.
Related
Ontology
Subjects/Areas/Topics:
Distributed Multimedia Systems
;
Internet Qos for Multimedia Applications
;
Multimedia
;
Multimedia Systems and Applications
;
Telecommunications
Abstract:
This paper presents DynaPeer Chaining, a peer-to-peer Video-on-Demand (VoD) delivery policy designed to deal with high bandwidth requirement of multimedia contents and additional constraints imposed by Internet environment: higher delays and jitter, network congestion, non-symmetrical clients’ bandwidth and inadequate support for multicast communications. We consider the scenario where we have multiple ADSL-based peers that stream the same video to multiple receivers. We propose an adaptive scheme to take advantage of idle peers in order to improve system efficiency, even when extreme conditions (low request rates or limited peer resources) are considered. We conducted a performance comparison study of our proposal with classic multicast (Patching) and other P2P delivery schemes, such as Pn2Pn and Chaining, improving their performance by 50%, 62% respectively, even when taking into account Internet constraints.