Performance analysis of polarization modulated direct detection optical CDMA systems over turbulent FSO links modeled by the Gamma-Gamma distribution

Fan Bai, Yuwei Su, Takuro Sato

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    This paper proposes a theoretical study to characterize the transmission of optical code division multiple access (CDMA) systems deploying polarization shift keying (PolSK) over a free space optical (FSO) link under the impact of atmospheric turbulence. In our analysis, a novel transceiver architecture for atmospheric OCDMA FSO systems based on polarization modulation with direct detection is proposed and discussed. A detailed analytical model for PolSK-OCDMA systems over a turbulent FSO link is provided. Further, we derive a closed-form bit error ratio (BER) and outage probability expressions, taking into account the multiple-access interference (MAI), optical noise and the atmospheric turbulence effect on the FSO link modeled by the Gamma-Gamma distribution. Finally, the results of this study show the most significant parameters that degrade the transmission performance of the PolSK-OCDMA signal over FSO links and indicate that the proposed approach offers improved bit error ratio (BER) performances compared to the on-off-keying (OOK) modulation scheme in the presence of turbulence.

    Original languageEnglish
    Pages (from-to)139-155
    Number of pages17
    JournalPhotonics
    Volume2
    Issue number1
    DOIs
    Publication statusPublished - 2015 Mar 1

    Fingerprint

    Optical Devices
    Optical links
    code division multiple access
    keying
    Code division multiple access
    Noise
    Theoretical Models
    Polarization
    Atmospheric turbulence
    polarization
    atmospheric turbulence
    Modulation
    shift
    Multiple access interference
    turbulence effects
    multiple access
    polarization modulation
    Transceivers
    Outages
    Optical systems

    Keywords

    • Atmospheric turbulence
    • Free space optical (FSO)
    • Gamma-Gamma distribution
    • Multiple-access interference (MAI)
    • On-off-keying (OOK)
    • Optical CDMA (OCDMA)
    • Polarization shift keying (PolSK)

    ASJC Scopus subject areas

    • Radiology Nuclear Medicine and imaging
    • Instrumentation
    • Atomic and Molecular Physics, and Optics

    Cite this

    Performance analysis of polarization modulated direct detection optical CDMA systems over turbulent FSO links modeled by the Gamma-Gamma distribution. / Bai, Fan; Su, Yuwei; Sato, Takuro.

    In: Photonics, Vol. 2, No. 1, 01.03.2015, p. 139-155.

    Research output: Contribution to journalArticle

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