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GLOBECOM
2010
IEEE

Are a Few Neighboring Peers Good Enough?

10 years 9 months ago
Are a Few Neighboring Peers Good Enough?
Most peer-assisted media streaming systems have applied a design philosophy that uses a "mesh" topology of peers: each peer connects to a small number of neighboring peers, with which it exchanges state information periodically. Requests for media segments are made to these neighboring peers on-demand. Apparently, with such a "gossiping" design principle, peers do not make decisions based on global knowledge of the entire system, sacrificing system-wide efficiency. If a peer connects to more neighbors, the gap between local and global knowledge is mitigated; however, the overhead of communicating with all neighbors periodically is proportionally higher. In this paper, using theoretical analysis based on a system of difference equations, we show the surprising result that, once the number of neighbors exceeds a very small threshold (typically 5), the peer upload capacity is fully utilized. We demonstrate that such a threshold is not affected by the scale of system, a...
Lili Zhong, Jie Dai, Bo Li, Baochun Li, Hai Jin
Added 11 Feb 2011
Updated 11 Feb 2011
Type Journal
Year 2010
Where GLOBECOM
Authors Lili Zhong, Jie Dai, Bo Li, Baochun Li, Hai Jin
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