DocumentCode :
3118932
Title :
Bridging tree-packing and network coding: An information flow approach
Author :
Lucani, Daniel E. ; Meedard, M.
Author_Institution :
Inst. de Telecomun., Univ. do Porto, Porto, Portugal
fYear :
2011
fDate :
23-25 March 2011
Firstpage :
1
Lastpage :
6
Abstract :
We present an information flow formulation that bridges network coding and tree packing (routing) and that is useful even if a suboptimal tree packing mechanism is used. We provide a system interpretation of our formulation from a network operators perspective. We study the trade-off between transmission cost and the cost of coding in a multicast session over coded packet networks. Our formulation is also useful to determine the maximal uncoded rate that can be delivered to terminals without incurring additional transmission costs with respect to the optimal network coding solution. We present numerical results illustrating the trade-off between transmission cost and the coding cost, using the fraction of rate delivered uncoded to the terminals as a proxy to the coding cost.
Keywords :
network coding; telecommunication network routing; coded packet networks; coding cost; information flow; multicast session; network coding; suboptimal tree packing mechanism; transmission cost; Encoding; Network coding; Optical switches; Optimization; Receivers; Routing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Sciences and Systems (CISS), 2011 45th Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-9846-8
Electronic_ISBN :
978-1-4244-9847-5
Type :
conf
DOI :
10.1109/CISS.2011.5766116
Filename :
5766116
Link To Document :
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