Resilience in PON-based data centre architectures with two-tier cascaded AWGRs

Jaafar M. H. Elmirghani; Mohammed Alharthi; Sanaa H. Mohamed; Taisir E. H. El-Gorashi

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Resilience in PON-based data centre architectures with two-tier cascaded AWGRs

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arxiv 2407.09925 v1 pith:R2GZ7LWA submitted 2024-07-13 cs.NI

Mohammed Alharthi , Sanaa H. Mohamed , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani This is my paper · ORCID

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keywords architectureawgr-basedcentredatatwo-tierconsumptiondelayperformance

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This paper investigates the performance of a two-tier AWGR-based Passive Optical Network (PON) data centre architecture against an AWGR-based PON data centre architecture by considering various scenarios involving link failures to evaluate the resilience of both designs. To optimize traffic routing under different failure scenarios, a Mixed Integer Linear Programming (MILP) model is developed and the power consumption and delay performance is assessed. The results demonstrate that the two-tier AWGR architecture reduced the power consumption and the delay compared to the AWGR-based architecture by up to 10% and 61%, respectively.

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