کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
460897 696471 2008 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improving stability for peer-to-peer multicast overlays by active measurements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Improving stability for peer-to-peer multicast overlays by active measurements
چکیده انگلیسی

The instability of the tree-like multicast overlay caused by nodes’ abrupt departures is considered as one of the major problems for peer-to-peer (P2P) multicast systems. In this paper, we present a protocol for improving the overlay’s stability by actively estimating the nodes’ lifetime model, and combining the nodes’ lifetime information with the overlay’s structural properties. We use the shifted Pareto distribution to model the nodes’ lifetimes in designing our protocol. To support this model, we have measured the residual lifetimes of the nodes in a popular IPTV system named PPLive [PPLive. http://www.pplive.com], and have formally analyzed the relationships between the distribution of the nodes’ lifetimes, ages and their residual lifetimes under the shifted Pareto distribution model. We evaluate the overlay construction strategies, which are essential in improving the overlay’s stability in our protocol, by comparing them with a number of other strategies in simulation. The experimental results indicate that our proposed protocol could improve the overlay’s stability considerably, with informative but not necessarily accurate lifetime model estimation, and with limited overhead imposed on the network as well as negligible sacrifice regarding the end-to-end service latencies for the nodes on the overlay.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Systems Architecture - Volume 54, Issues 1–2, January–February 2008, Pages 305–323
نویسندگان
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