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Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Routing Algorithms for SDM Flexible Optical Networks.

Ireneusz Olszewski¹, Ireneusz Szcześniak², Bożena Woźna-Szcześniak³

¹Faculty of Telecommunications, Computer Science and Electrical Engineering, Bydgoszcz University of Science and Technology, S. Kaliskiego 7, 85-796 Bydgoszcz, Poland.

Entropy (Basel, Switzerland)

|November 27, 2024

Summary

This study introduces three algorithms for elastic optical networks to reduce bandwidth blocking probability by managing interference. The best approach minimizes crosstalk by selecting paths with the most loaded cores.

Keywords:

core allocation crosstalk per slot elastic optical networks modulation routing

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Last Updated: Jul 16, 2026

Quasi-light Storage for Optical Data Packets

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Published on: February 6, 2014

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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

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Published on: September 8, 2023

Area of Science:

Telecommunications Engineering
Optical Network Optimization
Computer Science

Background:

Elastic optical networks (EONs) require efficient resource allocation for routing, modulation, spectrum, and core assignment.
Interference between established lightpaths significantly impacts network performance and bandwidth blocking probability.

Purpose of the Study:

To develop and evaluate algorithms for the online routing, modulation, spectrum, and core allocation problem in EONs.
To minimize bandwidth blocking probability by considering and mitigating interference effects.

Main Methods:

Proposed three algorithms based on Yen's algorithm to generate alternative paths ordered by length.
Algorithms enforce spectrum continuity, contiguity, non-overlapping spectra, maximize bits per symbol, and select specific cores.
Evaluated algorithms considering crosstalk impact on bandwidth blocking probability through simulations.

Main Results:

Simulation studies demonstrated that crosstalk significantly affects bandwidth blocking probability in EONs.
The best performing algorithm involved iterating over all paths and slots.
Optimal lightpath selection prioritized the lowest average crosstalk per slot and utilized the most loaded cores.

Conclusions:

The proposed algorithms effectively address the complex resource allocation problem in EONs.
Minimizing crosstalk is crucial for improving bandwidth blocking probability.
The strategy of selecting paths with the lowest average crosstalk and most loaded cores yields superior performance.