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2010

1 + N network protection for mesh networks: network coding-based protection using p-cycles

11 years 3 months ago
1 + N network protection for mesh networks: network coding-based protection using p-cycles
—p-Cycles have been proposed for preprovisioned 1 : N protection in optical mesh networks. Although the protection circuits are preconfigured, the detection of failures and the rerouting of traffic can be a time consuming operation. Another survivable mode of operation is the 1 + 1 protection mode, in which a signal is transmitted to the destination on two link disjoint circuits, hence recovery from failures is expeditious. However, this requires a large number of protection circuits. In this paper, we introduce a new concept in protection: 1 + N protection, in which a p-Cycle, similar to FIPP p-cycles, can be used to protect a number of bidirectional connections, which are mutually link disjoint, and also link disjoint from all links of the p-Cycle. However, data units from different circuits are combined using network coding, which can be implemented in a number of technologies, such as Next Generation SONET (NGS), MPLS/GMPLS, or IP-over-WDM. The maximum outage time under this pr...
Ahmed E. Kamal
Added 31 Jan 2011
Updated 31 Jan 2011
Type Journal
Year 2010
Where TON
Authors Ahmed E. Kamal
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