We propose and evaluate a Greedy Randomized Adaptive Search Procedure applied to minimize the number of power equalizers (GRASP-PE) needed to limit the propagation of high-power jamming attacks in WDM networks. Simulation results show that GRASP-PE significantly reduces the required number of power equalizers when compared to a greedy approach. 1.… (More)
Keywords: OR in telecommunications Integer linear programming Optical networks Physical-layer attacks Wavelength assignment Greedy Randomized Adaptive Search Procedure (GRASP) a b s t r a c t Today's Transparent Optical Networks (TONs) are highly vulnerable to various physical-layer attacks, such as high-power jamming, which can cause severe service… (More)
Keywords: Physical-layer attacks Power equalizers Greedy randomized adaptive search procedure (GRASP) Transparent optical networks a b s t r a c t The latest advances in Wavelength Division Multiplexing (WDM) technology are making it possible to build all-optical transparent WDM networks, which are expected to be able to satisfy the rapid growth of today's… (More)
Physical layer attacks in transparent optical networks are a serious security threat to network operation. We propose a novel protection approach based on wavelength assignment which limits the maximal propagation of intra-channel crosstalk attacks. 1. Introduction In Transparent Optical Networks (TONs), all-optical data connections, called lightpaths, are… (More)
We investigate benefits of setup-delay tolerance in elastic optical networks and propose an optimization model for dynamic and concurrent connection provisioning. Simulation shows that the proposed strategy offers significant improvement of the network blocking performance.