UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Improving the Performance of SDM-EON Through Demand Prioritization: A Comprehensive Analysis

Morales, P; Lozada, A; Borquez-Paredes, D; Olivares, R; Saavedra, G; Leiva, A; Beghelli, A; (2021) Improving the Performance of SDM-EON Through Demand Prioritization: A Comprehensive Analysis. IEEE Access , 9 pp. 63475-63490. 10.1109/ACCESS.2021.3074922. Green open access

[thumbnail of 09410611.pdf]
Preview
Text
09410611.pdf - Published Version

Download (2MB) | Preview

Abstract

This paper studies the impact of demand-prioritization on Space-Division Multiplexing Elastic Optical Networks (SDM-EON). For this purpose, we solve the static Routing, Modulation Level, Spatial Mode, and Spectrum Assignment (RMLSSA) problem using 34 different explainable demand-prioritization strategies. Although previous works have applied heuristics or meta-heuristics to perform demand-prioritization, they have not focused on identifying the best prioritization strategies, their inner operation, and the implications behind their good performance by thorough profiling and impact analysis. We focus on a comprehensive analysis identifying the best explainable strategies to sort network demands in SDM-EON, considering the physical-layer impairments found in optical communications. Also, we show that simply using the common shortest path routing might lead to higher resource requirements. Extensive simulation results show that up to 8.33% capacity savings can be achieved on average by balanced routing, up to a 16.69% capacity savings can be achieved using the best performing demand-prioritization strategy compared to the worst-performing ones, the most used demand-prioritization strategy in the literature (serving demands with higher bandwidth requirements first) is not the best-performing one but the one sorting based on the path lengths, and using double-criteria strategies to break ties is key for a good performance. These results are relevant showing that a good combination of routing and demand-prioritization heuristics impact significantly on network performance. Additionally, they increase the understanding about the inner workings of good heuristics, a valuable knowledge when network settings forbid using more computationally complex approaches.

Type: Article
Title: Improving the Performance of SDM-EON Through Demand Prioritization: A Comprehensive Analysis
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/ACCESS.2021.3074922
Publisher version: http://doi.org/10.1109/ACCESS.2021.3074922
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Science & Technology, Technology, Computer Science, Information Systems, Engineering, Electrical & Electronic, Telecommunications, Computer Science, Engineering, Modulation, Optical fiber networks, Optical modulation, Routing, Resource management, Bandwidth, Optical variables control, Elastic optical networks, space-division multiplexing, resource assignment, network capacity, physical-layer impairments
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10128075
Downloads since deposit
91Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item