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This paper addresses the problem of reducing congestion during logical topology design in de Bruijn WDM networks that can withstand the failure of a single physical link. Survivable routing of a logical topology ensures that the lightpaths are routed in a way that a single link failure does not disconnect the network. Survivable routing of the logical topology demands setting up of additional lightpaths...
The problem of designing high capacity and high bit rate IP-over-WDM networks, which can provide uninterrupted service in the presence of network equipment failures, continues to attract significant interest from the research community. An IP-over-WDM network implements Internet Protocol (IP) directly over physical WDM network by establishing lightpaths using IP routers, optical crossconnects (OXC)...
A new multiobjective genetic algorithm is proposed to jointly provision a WRON and design its logical topology with fault tolerance. The algorithm reduces the congestion and the number of resources employed, and therefore the cost.
Traffic grooming techniques in optical networks are attracting increasing research attention in order to handle the huge bandwidth mismatch between high capacity lightpaths and low-rate individual traffic requests. It is important to have guaranteed survivability of all user connections in such networks. Path protection has emerged as a widely accepted technique for survivable WDM network design....
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