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Related Experiment Video

Updated: Jun 22, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

A new heuristic algorithm with shared segment-backup paths for trap avoidance in survivable optical networks.

Lei Guo, Lemin Li, Jin Cao

    Optics Express
    |June 17, 2009
    PubMed
    Summary

    A new Quick Method with Shared Protection (QMSP) algorithm enhances survivable WDM optical networks by protecting against single-link failures. This method improves resource use and reduces connection blocking probability.

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    Last Updated: Jun 22, 2026

    Quasi-light Storage for Optical Data Packets
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    Published on: February 6, 2014

    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

    Area of Science:

    • Telecommunications Engineering
    • Computer Science
    • Network Reliability

    Background:

    • Wavelength Division Multiplexing (WDM) optical networks are critical for high-bandwidth communication.
    • Ensuring network survivability against link failures is a key challenge.
    • Existing protection mechanisms can be computationally intensive or inefficient.

    Purpose of the Study:

    • To introduce a novel heuristic algorithm, Quick Method with Shared Protection (QMSP), for single-link failure protection in WDM networks.
    • To address the 'trap path' problem in network routing.
    • To improve the efficiency and performance of survivable network design.

    Main Methods:

    • QMSP computes a primary path for each connection request.
    • If the primary path is identified as a trap path, QMSP calculates two segment-backup paths.
    • The algorithm is based on a defined routing policy to avoid failure-induced disruptions.

    Main Results:

    • QMSP demonstrates a superior time complexity compared to previous algorithms.
    • The algorithm achieves a higher resource utilization ratio.
    • QMSP results in a lower blocking probability for connection requests.

    Conclusions:

    • QMSP offers an efficient and effective solution for single-link failure protection in WDM networks.
    • The proposed method balances performance gains with computational efficiency.
    • QMSP contributes to more robust and reliable optical network infrastructures.