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Related Experiment Video

Updated: May 28, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Switched diversity approach for multireceiving optical wireless systems.

Hassan Moradi¹, Hazem H Refai, Peter G Lopresti

¹Electrical and Computer Engineering, University of Oklahoma, Tulsa, Oklahoma 73019, USA. hmoradi@ou.edu

|October 22, 2011

Summary

This summary is machine-generated.

A novel switch-to-dominant combining spatial diversity scheme enhances optical wireless communication bit error rate (BER) performance. This innovative approach offers superior performance over existing switched diversity methods in challenging environments.

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Last Updated: May 28, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Area of Science:

Optical Wireless Communication
Wireless Communication Systems
Signal Processing

Background:

Spatial diversity schemes enhance optical wireless communication (OWC) systems in diverse environments.
Switched diversity offers low complexity and ease of implementation.
Existing schemes include switch-and-stay and switch-and-examine diversity.

Purpose of the Study:

To propose an innovative spatial diversity scheme, switch-to-dominant combining, for OWC systems.
To analyze and compare the bit error rate (BER) and processing load performance of the new scheme against conventional methods.
To evaluate performance in spatially correlated, lognormal fading channels.

Main Methods:

Development of the switch-to-dominant combining spatial diversity scheme.
Analytical modeling of BER and processing load.
Comparative analysis with conventional switched diversity (switch-and-stay, switch-and-examine) and selection combining.

Main Results:

The proposed switch-to-dominant combining scheme demonstrates superior BER performance compared to conventional switched diversity techniques.
The new scheme maintains competitive processing load efficiency.
Performance was evaluated under specific channel conditions: spatially correlated and lognormal fading.

Conclusions:

Switch-to-dominant combining is an effective spatial diversity scheme for improving OWC system performance.
The proposed scheme offers a valuable advancement over existing switched diversity techniques.
This method provides a practical solution for enhancing reliability in optical wireless communication.