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Performance Analysis of Different Intensity Modulation Techniques over Weak Turbulence Channel

Published: 28 December 2023 Publication History

Abstract

In order to improve the performance of differential pulse position modulation (DPPM), an improved differential pulse position modulation (IDPPM) scheme is proposed. The mapping relation and symbol structure of IDPPM are studied, and the mathematical model of IDPPM is established. On the basis, the modulation performance of IDPPM is analyzed. Then the slot error rate model of IDPPM under weak turbulence channel is derived. The effects of turbulence intensity, transmission distance, modulation order and laser wavelength on system performance are simulated and analyzed. Theoretical analysis and research results show that the increase of turbulence intensity or transmission distance can lead to the decrease of IDPPM system performance. The increase of modulation order, laser wavelength or signal-to-noise ratio (SNR) can improve the system performance. Comparing with other modulation schemes, IDPPM is superior to DPPM and L-level pulse position modulation (LPPM) in terms of bandwidth requirement, unit transmission rate and peak power requirement. And its error performance is significantly better than on-off keying (OOK). Alo it does not require symbol synchronization, which can simplify the complexity of system implementation.

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  1. Performance Analysis of Different Intensity Modulation Techniques over Weak Turbulence Channel

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    ICCSIE '23: Proceedings of the 8th International Conference on Cyber Security and Information Engineering
    September 2023
    370 pages
    ISBN:9798400708800
    DOI:10.1145/3617184
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 28 December 2023

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    Author Tags

    1. Free Space Optical Communication
    2. Modulation Scheme
    3. Slot Error Rate
    4. Weak Turbulence

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    • Research-article
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    • Refereed limited

    Funding Sources

    • Science and Technology Project of the Education Department of Jilin Province
    • Scientific Research Innovation Team Program of Changchun Institute of Technology

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    ICCSIE 2023

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