Successful Application of Genetic Algorithms to Network Design and Planning
BT Technology Journal
Future photonic transport networks based on WDM technologies
IEEE Communications Magazine
An approach to wide area WDM optical network design using genetic algorithm
Computer Communications
On optical communications networks and wideband network architecture
Computer Communications
On the computational complexity of reliability redundancy allocation in a series system
Operations Research Letters
Information Sciences: an International Journal
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This paper considers the problem of enhancing the dependability (availability and its influencing factors) of optical cross connect nodes. These nodes are expected to be a crucial part of future optical communication networks. The genetic optimum redundancy allocation (GORA) algorithm proposed here is based on a hybrid genetic algorithm and solves the dependability enhancement problem by optimizing the allocation of redundant modules in the nodes. Three redundancy schemes are considered: (1) global duplicate (2) local standby and (3) k-out-of-n:G redundancy. After applying the GORA algorithm to four example nodes, the optimized third redundancy scheme provided the overall best dependability performance. This suggests that redundancy is more effective when provided at the OXN subsystem level. Further capabilities of the GORA algorithm as a network planning tool also presented and some improvements are proposed.