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Resilient Optical Network Design to Handle Dynamic Requests for Communication

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  • Wed, 06/21/2017 - 10:00am - 12:00pm

Resilient Optical Network Design to Handle Dynamic Requests for Communication

PhD. Thesis Proposal by:

Saja Al Mamoori

Date: Wednesday, June 21st, 2017
Time: 10:00 am - 12:00 pm
Location: 3105, Lambton Tower

Abstract: Security issues and attacks in transparent optical networks have become very significant. A malicious high-power jamming signal has the potential of degrading other legitimate optical signals. This vulnerability in wavelength-division multiplexing (WDM) networks can cause huge data loss. Most approaches to handle this threat deal with static traffic. We have studied this problem in the more realistic case of dynamic traffic. We have proposed an optimal algorithm and a heuristic for attack-aware routing and wavelength assignment (RWA) in WDM networks. Our approaches significantly reduce the vulnerability of WDM networks to high power jamming signals.

Another important problem is to design a survivable data center network that can continue to provide services, even after a large-scale disaster that disrupts parts of the network. We have proposed an optimal algorithm and a heuristic technique to provide backup lightpaths that avoids disasters-zones and minimize the resources used. Recently space-division multiplexing (SDM) has been proposed as a promising solution to future limitation of the capacity of optical networks. We have developed a novel strategy that allocates resources to lightpath requests in orthogonal frequency-division multiplexing (OFDM) datacenter networks for dynamic traffic, using dedicated path protection.

Thesis Committee: 
Internal Reader: Dr. Subir Bandyopadhyay, Dr. Alioune Ngom      
External Reader: Dr. Kevin Li      
Advisor: Dr. Arunita Jaekel

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