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Related Experiment Video

Updated: Aug 30, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

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

Published on: September 8, 2023

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Wide-Sense Nonblocking Converting-Converting Networks with Multirate Connections.

Wojciech Kabaciński1, Remigiusz Rajewski1

  • 1Institute of Communication and Computer Networks, Poznan University of Technology, Polanka 3, 60-965 Poznan, Poland.

Sensors (Basel, Switzerland)
|August 26, 2022
PubMed
Summary

A new routing algorithm, Fixed Input-interstage Slot Assignment (FISA), simplifies two-stage converting-converting switching networks. This method achieves wide-sense nonblocking performance without complex rearrangements, benefiting elastic optical networks.

Keywords:
2-stage networkselastic optical networksmultirate networkswide-sense nonblocking (WNB)

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Area of Science:

  • Telecommunications Engineering
  • Optical Network Architectures
  • Switching Network Design

Background:

  • Two-stage converting-converting (CC) switching networks are crucial components in modern communication systems, including elastic optical networks (EONs) and time-division switches.
  • Existing rearrangeable nonblocking (RNB) networks often require complex and time-consuming rearrangement procedures to maintain nonblocking performance.
  • The complexity and operational overhead of current switching network designs present challenges for scalability and efficiency.

Purpose of the Study:

  • To introduce a novel routing algorithm, Fixed Input-interstage Slot Assignment (FISA), for two-stage CC switching networks.
  • To analyze and derive the wide-sense nonblocking (WNB) conditions for networks employing the FISA algorithm.
  • To demonstrate the potential for reduced complexity and improved implementation efficiency compared to RNB networks.

Main Methods:

  • Development of the Fixed Input-interstage Slot Assignment (FISA) algorithm for routing in CC switching networks.
  • Mathematical derivation of the wide-sense nonblocking (WNB) conditions specific to the FISA algorithm.
  • Comparative analysis of the proposed FISA-controlled network with traditional RNB switching networks.

Main Results:

  • The FISA algorithm achieves wide-sense nonblocking (WNB) performance in two-stage CC switching networks.
  • The derived WNB conditions for FISA are identical to those of RNB networks, but without the need for rearrangements.
  • Implementation of the FISA-controlled network allows for reduced numbers of tunable spectrum converters, with options for fixed converters or space switches in the first stage.

Conclusions:

  • The FISA algorithm offers a simplified approach to achieving WNB performance in CC switching networks.
  • This simplification leads to reduced hardware complexity and operational efficiency, particularly beneficial for EONs.
  • The proposed architecture presents a more practical and cost-effective solution for next-generation optical and time-division switching systems.