Quantifying Optimal Mesh and Ring Design Costs

During the last decade telecommunication operators have been deploying WDM (Wavelength Division Multiplexing) technology to satisfy the exponential growth in global communication. While facilitating the advanced information society of today, this has also led to a higher dependency on the networks, and furthermore the high capacity utilisation of optical fibres means that a single link failure will influence many users and enterprises. For these reasons, protection of network connections has become a major competitive parameter for the operators.