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Related Experiment Videos

Evaluation of coherence interference in optical wireless communication through multiscattering channels.

Debbie Kedar1, Shlomi Arnon

  • 1Satellite and Wireless Communication Laboratory, Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel.

Applied Optics
|May 6, 2006
PubMed
Summary

This study analyzes coherence interference in optical wireless communication through scattering channels. Results show this interference significantly degrades performance, depending heavily on the scattering medium

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Area of Science:

  • Optical wireless communication
  • Electromagnetic wave propagation
  • Scattering media physics

Background:

  • Optical wireless communication (OWC) faces performance degradation from beam spread, turbulence, and noise.
  • Existing research often overlooks coherence effects in multiscattering OWC channels.
  • Multipath interference due to scattering impacts signal integrity in OWC.

Purpose of the Study:

  • To theoretically analyze coherence interference in OWC through scattering channels.
  • To quantify the performance degradation caused by coherence interference.
  • To investigate the influence of different media on this degradation.

Main Methods:

  • Theoretical analysis of coherence effects in OWC.
  • Modeling of multipath interference in scattering environments.

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  • Quantification of performance degradation metrics.

    • Main Results:

    • Coherence interference is a discernible factor in OWC through scattering channels.
    • Performance degradation is directly linked to the microscopic properties of the scattering medium.
    • The extent of interference varies significantly with different propagation media.

    Conclusions:

    • Coherence interference is a critical, yet understudied, aspect of OWC performance.
    • Understanding the scattering medium's nature is key to mitigating coherence interference.
    • Further research into coherence effects is necessary for robust OWC system design.