Design of Rotating Shift Schedules while Mitigating Circardian Cycle Disruption

The main goal of this project is to design rotating shift schedules that mitigate the circadian cycle disruptions, while taking account that the circadian cycle varies from person to person
Project in done in collaboration with Dr. Tristan Glatard (Concordia University) and Dr. Diane Boivin (Department of Medecine, McGill University).

Defragmentation in WDM Optical Networks

As lightpath services are added to a network over time, spectrum becomes fragmented, i.e., available wavelengths on different links do not match and thus no end-to-end paths can be established. While an offline provisioning where all traffic is known can minimize this effect to some extent, a dynamic or even incremental scenario is naturally more prone to creating a fragmented spectrum with wasted capacity.
There are multiple flavours of network defragmentation, depending on the specific deployment and technological constraints. Most commonly, lightpath reconfiguration is considered, wherein existing demands’ spectrum and paths are rearranged to accommodate a known set of additional demands. Several techniques can be employed with this goal: traditionally, a “make-before-break” technique is considered, where the rearranged demand is setup before the original one is torn down in order to prevent traffic disruption, by, e.g., duplicating the existing traffic.

Sorting Cars in a Flat Yard

Design of an efficient sorting algorithm in order to sort cars in a flat yard.