Wavelength assignment for reducing in-band crosstalk attack propagation in optical networks: ILP formulations and heuristic algorithms

► Transparent Optical Networks (TONs) are vulnerable to physical-layer jamming attacks. ► We propose to reduce vulnerability through careful network planning and provisioning. ► We propose new attack-aware objectives and ILP formulations for small networks. ► Greedy Randomized Search Procedure algorithms are developed for larger instances. ► Our approach enhances network security towards attacks without using extra resource.