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

*この研究の対応する著者

研究成果: Article査読

19 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)139-155
ページ数17
ジャーナルPhotonics
2
1
DOI
出版ステータスPublished - 2015 3月 1

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 器械工学
  • 放射線学、核医学およびイメージング

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