NDLI: Minimum-cost multicast over coded packet networks

Content Provider	IEEE Xplore Digital Library
Author	Lun, D.S. Ratnakar, N. Medard, M. Koetter, R. Karger, D.R. Ho, T. Ahmed, E. Zhao, F.
Copyright Year	1963
Abstract	We consider the problem of establishing minimum-cost multicast connections over coded packet networks, i.e., packet networks where the contents of outgoing packets are arbitrary, causal functions of the contents of received packets. We consider both wireline and wireless packet networks as well as both static multicast (where membership of the multicast group remains constant for the duration of the connection) and dynamic multicast (where membership of the multicast group changes in time, with nodes joining and leaving the group). For static multicast, we reduce the problem to a polynomial-time solvable optimization problem, and we present decentralized algorithms for solving it. These algorithms, when coupled with existing decentralized schemes for constructing network codes, yield a fully decentralized approach for achieving minimum-cost multicast. By contrast, establishing minimum-cost static multicast connections over routed packet networks is a very difficult problem even using centralized computation, except in the special cases of unicast and broadcast connections. For dynamic multicast, we reduce the problem to a dynamic programming problem and apply the theory of dynamic programming to suggest how it may be solved.
Sponsorship	IEEE Information Theory Society
Starting Page	2608
Ending Page	2623
Page Count	16
File Size	479357
File Format	PDF
ISSN	00189448
Volume Number	52
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dynamic programming Multicast algorithms Network coding Wireless networks Laboratories Polynomials Computer networks Unicast Broadcasting Communication networks wireless networks Ad hoc networks communication networks distributed algorithms dynamic multicast groups multicast network coding network optimization
Content Type	Text
Resource Type	Article
Subject	Library and Information Sciences Information Systems Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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