Network Awareness of P2P Live Streaming Applications: A Measurement Study

Early P2P-TV systems have already attracted millions of users, and many new commercial solutions are entering this market. Little information is however available about how these systems work, due to their closed and proprietary design. In this paper, we present large scale experiments to compare th...

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Bibliographic Details
Published in:IEEE transactions on multimedia 2010-01, Vol.12 (1), p.54-63
Main Authors: Ciullo, D., Garcia, M.A., Horvath, A., Leonardi, E., Mellia, M., Rossi, D., Telek, M., Veglia, P.
Format: Article
Language:English
Subjects:
Applied sciences
Computer science
control theory
systems
Computer systems and distributed systems. User interface
Costs
Data analysis
Exact sciences and technology
Large-scale systems
Locality awareness
multimedia streaming
neighbor selection
Next generation networking
overlay
Peer to peer computing
peer-to-peer networks
Software
Streaming media
System testing
Telecommunication traffic
Web and internet services
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Summary:Early P2P-TV systems have already attracted millions of users, and many new commercial solutions are entering this market. Little information is however available about how these systems work, due to their closed and proprietary design. In this paper, we present large scale experiments to compare three of the most successful P2P-TV systems, namely PPLive, SopCast and TVAnts. Our goal is to assess what level of "network awareness" has been embedded in the applications. We first define a general framework to quantify which network layer parameters leverage application choices, i.e., what parameters mainly drive the peer selection and data exchange. We then apply the methodology to a large dataset, collected during a number of experiments where we deployed about 40 peers in several European countries. From analysis of the dataset, we observe that TVAnts and PPLive exhibit a mild preference to exchange data among peers in the same autonomous system the peer belongs to, while this clustering effect is less intense in SopCast. However, no preference versus country, subnet or hop count is shown. Therefore, we believe that next-generation P2P live streaming applications definitively need to improve the level of network-awareness, so to better localize the traffic in the network and thus increase their network-friendliness as well.
ISSN:1520-9210
1941-0077
DOI:10.1109/TMM.2009.2036231