Dynamic wavelength assignment for WDM all-optical tree networks

Wavelength Assignment for Light-tree Protection in Wdm Optical Networks

In this paper, we address the wavelength assignment problem for light-tree protection under different traffic models. For static traffic, we formulate the problem mathematically and propose two new heuristics (tabu search and iterated hill-climber) to solve it. For dynamic traffic, in contrast to previous work, we analyze the traffic characteristics and propose a Low Cost First Serve (LCFS) str...

Multicoloring and Wavelength Assignment in WDM all-optical Networks

This paper deals with the wavelength assignment problem in WDM all-optical networks. This problem can be abstracted as a multicoloring on a weighted conflict graph. The main focus of this work is to obtain the relationship between the wavelength assignment and the multicoloring problems. We, first, establish a new result regarding multicoloring problem in which we provide a tight bound for any ...

On Dynamic Wavelength Assignment in WDM Optical Networks Murat

Dynamic Routing and Wavelength Assignment using Adaptive Weight Function for All - Optical WDM Networks

We propose a novel WDM aware weight function for solving the Routing and Wavelength Assignment (RWA) problem in optical WDM networks taking into consideration factors like number of used wavelengths , availability of free wavelengths and route length jointly under dynamic traffic conditions. The performance of proposed routing strategy is studied in combination with first-fit, and most used wav...

Distributed Routing and Wavelength Assignment Algorithms for Dynamic WDM All-optical Networks

The problem of establishing lightpath between a given source-destination pair through routing and assigning wavelength to the route is known as routing and wavelength assignment (RWA) problem. In this paper, we have proposed a set of distributed algorithms for dynamic RWA problem in WDM All-optical networks. We have made a comparative study of different distributed algorithms in terms of blocki...