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Proactive Route Maintenance for Tree-Based Application Layer Multicast and Its Implementations Tetsuya KUSUMOTO Jiro KATTO Sakae OKUBO Publication IEICE TRANSACTIONS on Information and Systems Vol.E89-D No.12 pp.2856-2866 Publication Date: 2006/12/01 Online ISSN: 1745-1361 DOI: 10.1093/ietisy/e89-d.12.2856 Print ISSN: 0916-8532 Type of Manuscript: Special Section PAPER (Special Section on New Technologies and their Applications of the Internet IV) Category: Keyword: application layer multicast, peer to peer streaming, overlay tree, proactive route maintenance, Full Text: PDF(1MB)>>
Summary: The purpose of this study is to maintain efficient backup routes for reconstructing overlay trees quickly. In most conventional methods, after a node leaves the trees, its child nodes start searching for the new parents. In this reactive approach, it takes a lot of time to find a new parent. In this paper, we propose a proactive approach to finding a next parent as the backup route node over the overlay tree before the current parent leaves. A proactive approach allows a node to find its new parent node immediately and switch to the backup route node smoothly. In our proposal, the structure of the overlay tree using a redundant degree can decide a backup route node without so much overhead. Simulations demonstrate our proactive approach can recover from node departures 2 times faster than reactive approaches, and can construct overlay trees with lower overheads than another proactive method. Additionally we carried out experiments over actual networks and their results support the effectiveness of our approach. We confirmed that our proposal achieved better streaming quality than conventional approaches. | ||||||||||
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