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