TY - GEN
T1 - Impacts of peer churn on P2P streaming networks
AU - Kang, Xiaohan
AU - Jaramillo, Juan Jose
AU - Ying, Lei
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Peer-to-peer (P2P) technology has been broadly adopted in live media streaming in recent years. In this paper, we consider a P2P streaming network where a server generates content chunks, and transmits each chunk to a randomly selected peer. Peers then exchange chunks among themselves according to some chunk selection policy. While the performance of different chunk selection policies has been intensively analyzed assuming no peer arrival or departure, the impact of peer churn on P2P live streaming has not been well understood yet. We show that unlike in the static network scenario, larger buffer size does not necessarily result in higher playout probability in the presence of peer churn. We further analyze the relation between the buffer size, playout probability and peer churn under different chunk selection policies and characterize the impact of peer churn on the performance of these chunk selection policies via both theoretical analysis and simulations.
AB - Peer-to-peer (P2P) technology has been broadly adopted in live media streaming in recent years. In this paper, we consider a P2P streaming network where a server generates content chunks, and transmits each chunk to a randomly selected peer. Peers then exchange chunks among themselves according to some chunk selection policy. While the performance of different chunk selection policies has been intensively analyzed assuming no peer arrival or departure, the impact of peer churn on P2P live streaming has not been well understood yet. We show that unlike in the static network scenario, larger buffer size does not necessarily result in higher playout probability in the presence of peer churn. We further analyze the relation between the buffer size, playout probability and peer churn under different chunk selection policies and characterize the impact of peer churn on the performance of these chunk selection policies via both theoretical analysis and simulations.
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U2 - 10.1109/Allerton.2012.6483384
DO - 10.1109/Allerton.2012.6483384
M3 - Conference contribution
AN - SCOPUS:84875747982
SN - 9781467345385
T3 - 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
SP - 1417
EP - 1424
BT - 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
T2 - 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
Y2 - 1 October 2012 through 5 October 2012
ER -