Node-arc working capacity allocation planning in survivable WDM optical networks

Survivability is an ability of a network to withstand and recover from failures; it is one of the most important requirements of the network. This manuscript presents simple integer linear program (ILP) formulations for node-arc working capacity allocation model. This model provides 100% secure protection against link failure. The capacity utilization for network A (six-node), network B (eight-node) & National Science Foundation Network (NSFNET) has been thoroughly analyzed.