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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Making path selection faster: a routing algorithm for ONoC.

Lijing Zhu, Huaxi Gu, Yintang Yang

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    A new loophole-routing algorithm for optical network-on-chip (ONoC) improves performance by predicting congestion. This method enhances path setup success and reduces latency in high-performance computing systems.

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    Area of Science:

    • Computer Engineering
    • Optical Communications
    • Network Architecture

    Background:

    • Optical network-on-chip (ONoC) offers high performance and energy efficiency.
    • Existing routing algorithms fail to address ONoC's circuit-switching characteristics, leading to congestion and performance degradation.
    • Congestion significantly impacts latency and path setup success rates in ONoCs.

    Purpose of the Study:

    • To propose a novel routing algorithm for ONoC that mitigates congestion issues.
    • To enhance path setup success rate and reduce network latency.
    • To improve the overall performance of optical networks-on-chip.

    Main Methods:

    • Developed a new routing algorithm named 'loophole-routing' for ONoC.
    • Utilized a congestion prediction technique to analyze latency and predict port conditions.
    • Conducted theoretical analysis and experimental evaluations using various synthetic traffic patterns.

    Main Results:

    • Loophole-routing demonstrated significant improvements in network latency compared to XY and OE-turn routing across multiple traffic patterns.
    • Saturation throughput was substantially increased by loophole-routing on average.
    • The algorithm exhibited high path diversity, adaptive degree, low computational complexity, and overhead.

    Conclusions:

    • Loophole-routing effectively addresses ONoC congestion by leveraging predictive techniques.
    • The proposed algorithm offers superior performance in terms of latency and throughput.
    • Loophole-routing presents a promising solution for efficient and potentially fault-tolerant ONoC communication.