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Security-Aware RWA for Dyanmic traffic using path protection in WDM networks

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  • Tue, 09/19/2017 - 11:30am - 12:30pm




Security-Aware RWA for Dynamic traffic using path protection in WDM networks

MSc Thesis Proposal by:

Kamaljeet Gill

Date:  Tuesday, September 19th, 2017
Time:  11: 30 am – 12:30 pm
Location: 3105, Lambton Tower

Abstract: In transparent optical networks (TONs) traffic is carried over the optical fibers in the form of signals called lightpaths, creating a virtual topology over the physical interconnections of an optical fiber. This allows exchange of an enormous amount of data at a very high speed. A fault or an attack in the network can lead to data tampering and data loss. Unlike faults, malicious attacks may not be localized and we cannot handle them with the standard fault-tolerance mechanisms in WDM networks.

The Routing and Wavelength Assignment (RWA) problem assigns appropriate routes and wavelengths to all associated lightpaths in the network. Most the researchers considered the static traffic model, where the network requests (i.e. lightpaths to be established) are known in advance and last over long durations. In this thesis, we are solving the security-aware problem for dynamic requests by using protection strategy known as dedicated path protection (DPP). In the dynamic model lightpaths are generated on-demand and RWA must be performed based on available resources that are not being used by ongoing lightpaths. We propose an Integer linear programming (ILP) formulation to maximize requests satisfaction and reducing the disruption in the network due to malicious attacks (In-band and out-band).

Thesis Committee:
Internal Reader: Dr. Dan Wu
External Reader: Dr. Esam Abdel- Raheem
Advisor: Dr. Arunita Jaekel



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