NDLI: Distributed delay constrained multicast path setup algorithm for high speed networks

Content Provider	IEEE Xplore Digital Library
Author	Bajaj, R. Ravikumar, C.P. Chandra, S.
Copyright Year	1997
Description	Author affiliation: Indian Inst. of Technol., Delhi, India (Bajaj, R.)
Abstract	The problem of finding an optimal multicast tree in a point to point network translates to the Steiner problem in graphs. Since the Steiner problem is NP complete, heuristic approaches are required for path setup. The problem takes a new dimension in wide area networks, where centralized algorithms are not feasible, and distributed schemes are needed. It is also desirable that node participation for path setup is limited to nodes directly involved in the multicast. An additional requirement that comes from the nature of the applications such as video conferencing that use the multicast support from the network is that of bounded end to end delays along any path from the source to each destination in the multicast tree. We present a heuristic algorithm that ensures delay bounds, is distributed and produces trees that are only slightly more expensive than those produced by centralized algorithms. Further we examine the degradation in performance in case of changing delays along network links (where QoS guarantees on delay are not available), and propose ways of making the tree adaptive to these changes. This dynamic routing approach minimizes resource reservation demands and also makes changing multicast groups permissible.
Starting Page	438
Ending Page	442
File Size	484279
Page Count	5
File Format	PDF
ISBN	0818680679
DOI	10.1109/HIPC.1997.634527
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-12-18
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multicast algorithms High-speed networks Tree graphs Delay Quality of service Steiner trees Heuristic algorithms Distributed algorithms Wide area networks Degradation
Content Type	Text
Resource Type	Article

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