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Enabled Impairment Cognizant Of Elastic Optical Networks By Traffic Grooming And Multipath Routing

Amit Yadav

Abstract


The large bandwidth of fibre optical networking is far wider than the typical bandwidth required by network service providers. This variation leads to a need for multiplexing the low rate traffic demands into optical wavelength channels, but this call for a extravagant electronic swapping devices, potentially equalizing the advantage of low cost optical transport. Traffic grooming and multipath routing are two techniques that are being commonly used to increase the performance of traditional wavelength division multiplexed networks. They have been recently used in elastic optical networks to increase spectral efficiency. In this paper we have employed these two techniques with the realistic physical impairment model in order to find out the potential gain. We focus in this paper to present an analytical optimization simulation for small networks and a heuristic for large networks which can allocate resources and quantify spectral efficiency gains over existing impairment-awareness layout. With the help of various numerical methods traffic grooming and multipath routing have been explained together along with increased spectral efficiency and reduced resource consumption. This work conclude significant performance enhancements in networks with low degrees of connectivity, high traffic loads, and long links.
KEYWORDS: Elastic Optical Networks (EON), Spectral Efficiency, Impairment

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DOI: https://doi.org/10.37628/ijtet.v2i1.187

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