Dynamic segment shared protection algorithm for reliable wavelength-division-multiplexing mesh networks

Dynamic segment shared protection algorithm for reliable wavelength-division-multiplexing mesh networks.

With the maturation of the technology of Wavelength-Division-Multiplexing (WDM) in optical networks, the survivable design has become a key issue. In this paper, we propose a Segment Shared Protection Algorithm (SSPA), which is based on the reliability of the networks and the different levels of the fault tolerance requested by the users, to protect the single-link failure in WDM optical networ...

Designing Survivable Wavelength Division Multiplexing (WDM) Mesh Networks

Joint routing and wavelength assignment in wavelength division multiplexing networks for permanent and reliable paths

In this paper, we tackle the routing and wavelength assignment problem for wavelength division multiplexing (WDM) networks containing permanent and reliable wavelength paths (WPs). It consists of 4nding the route and the wavelength of each WP for the normal state of the network and for the important failure scenarios. These scenarios might be the most probable failure scenarios or simply the fa...

Genetic Algorithm Based Wavelength Division Multiplexing Networks Planning

This paper presents a new heuristic algorithm useful for long-term planning of survivable WDM networks. A multi-period model is formulated that combines network topology design and capacity expansion. The ability to determine network expansion schedules of this type becomes increasingly important to the telecommunications industry and to its customers. The solution technique consists of a Genet...

Efficient Multipath Routing and Wavelength Allocation Using Traffic Grooming in Optical Wavelength Division Multiplexing Mesh Networks

In optical WDM mesh networks, traffic grooming is essential in order to utilize the bandwidth efficiently to minimize the cost and meet the user service requirement. By grooming traffic, it is possible to reduce the total cost of all Add drop multiplexer needed. Also for the high processing capability in a WDM network, the path should be capable of carrying the traffic without any failure. In t...