"Simulating Large-Scale P2P Assisted Video Streaming"
R. LaFortune, C. D. Carothers, W. D. Smith, J. Czechowski and X. Wang
In Proceedings of the 2009 Hawaii Interational Conference on System Sciences (HICSS '09).
ABSTRACT
In this paper, we show through detailed simulations that BitTorrent
can be used to assist a server or content distribution network (CDN)
for large-scale streaming delivery. Specifically, a content owner
can distribute a file to over 131,072 users/peers with a peak swarm
size of 16,384 concurrent users and a CDN bandwidth savings of 73%,
while achieving an average user buffer time of under 2 seconds,
which is an A+ on the StreamQ user performance rating
system. Current research and even deployed systems rarely have
swarms in excess of 1,000 concurrent peers for a single piece of
content. Consequently, this is the first study that reports on
peer-to-peer streaming for swarms of this scale. Further, the
simulation model demonstrates that a high quality of service can be
provided, while significantly reducing the distributor's transit
costs for these large swarms.