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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Published on: March 20, 2017

All-optical code-division multiple-access applications: 2(n) extended-prime codes.

J G Zhang, W C Kwong, S Mann

    Applied Optics
    |February 9, 2008
    PubMed
    Summary
    This summary is machine-generated.

    A new class of 2(n) extended-prime codes enhances optical networks by reducing signal interference. These codes allow more users in all-optical code-division multiple-access networks compared to existing 2(n) prime codes.

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    Area of Science:

    • Optical Communications
    • Coding Theory
    • Network Engineering

    Background:

    • All-optical code-division multiple-access (CDMA) networks require efficient coding schemes.
    • Existing 2(n) prime codes offer advantages but have limitations in cross-correlation properties.
    • There is a need for codes that support a higher user capacity with low error rates.

    Purpose of the Study:

    • To introduce a novel family of 2(n) extended-prime codes.
    • To improve the performance of all-optical CDMA networks.
    • To enable greater scalability and efficiency in optical network design.

    Main Methods:

    • Derivation of 2(n) extended-prime codes from extended-prime codes.
    • Analysis of cross-correlation functions for the new code family.
    • Comparison of performance metrics with existing 2(n) prime codes.

    Main Results:

    • The proposed 2(n) extended-prime codes exhibit cross-correlation values not exceeding 1.
    • This reduction in cross-correlation allows for a larger number of active users for a given bit-error rate.
    • The new codes are compatible with existing power-efficient, waveguide-integrable all-serial coding configurations.

    Conclusions:

    • 2(n) extended-prime codes represent a significant advancement for all-optical CDMA networks.
    • They offer superior user capacity compared to 2(n) prime codes.
    • The codes facilitate enhanced network performance and scalability without compromising existing infrastructure.