RoFSO channel modeling considering time-correlation of scintillation and its application to performance evaluation of WLAN signal transmission

Kyung Hwan Kim, Hideaki Onodera, Takeshi Higashino, Takuya Nakamura, Yuji Aburakawa, Katsutoshi Tsukamoto, Shozo Komaki, Kazuhiko Wakamori, Toshiji Suzuki, Kamugisha Kazaura, Mohamad Shah Alam, Koichi Takahashi, Kazunori Ohmae, Takuro Sato, Mitsuji Matsumoto

    Research output: Contribution to journalArticle

    Abstract

    This paper firstly derives a new model of RoFSO (Radio on Free Space Optics) channel considering fluctuation speed of the scintillation and the probability density function (p.d.f) of the random and time-correlated optical intensity disturbed by scintillation. The relationships among frequency characteristic of RoFSO channel, variance of received optical intensity and atmospheric conditions (temperature and insolation) are statistically analyzed by the proposed model. By using the proposed model and the relationships, the throughput performance of WLAN (802.11a) over RoFSO link is evaluated with computer simulations. For two cases of without-shadowing and with-shadowing in the radio propagation channel, evaluations of degradation due to scintillation are conducted. As a result, it is found that the degradation due to scintillation is much smaller than that due to shadowing in the throughput performance for WLAN.

    Original languageEnglish
    Article number72340L
    JournalUnknown Journal
    Volume7234
    DOIs
    Publication statusPublished - 2009

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    Keywords

    • Butterworth filter
    • Degradation
    • Fluctuation speed
    • Gamma distribution
    • RoFSO (radio on free space optics) system
    • Scintillation
    • Throughput performance
    • Time-correlation

    ASJC Scopus subject areas

    • Applied Mathematics
    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Kim, K. H., Onodera, H., Higashino, T., Nakamura, T., Aburakawa, Y., Tsukamoto, K., Komaki, S., Wakamori, K., Suzuki, T., Kazaura, K., Alam, M. S., Takahashi, K., Ohmae, K., Sato, T., & Matsumoto, M. (2009). RoFSO channel modeling considering time-correlation of scintillation and its application to performance evaluation of WLAN signal transmission. Unknown Journal, 7234, [72340L]. https://doi.org/10.1117/12.808849