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2008
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Reducing network cost of many-to-many communication in unidirectional WDM rings with network coding

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Reducing network cost of many-to-many communication in unidirectional WDM rings with network coding
—In this paper we address the problem of traffic grooming in WDM rings with all-to-all and its generalization to many-to-many service by using network coding. We consider minimizing the number of Line Terminating Equipment (LTE) on two types of unidirectional rings, namely, single-hub and unhubbed rings, as our objective. In single-hub rings, we investigate the minimum cost provisioning of uniform all-to-all traffic in two cases: where network coding is used to linearly combine data, and where it is not used and data is transmitted without coding. We generalize the service mode to many-to-many and evaluate the cost of provisioning. In un-hubbed ring, we propose a multi-hub approach to obtain the minimum cost provisioning in the case of all-to-all and many-to-many traffic. In each type of ring topology, two network scenarios are considered: first, the distinct communication groups in the ring are node-disjoint and second, the different groups may have common member nodes. From our...
Long Long, Ahmed E. Kamal
Added 31 May 2010
Updated 31 May 2010
Type Conference
Year 2008
Where LCN
Authors Long Long, Ahmed E. Kamal
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