| Issue |
MATEC Web Conf.
Volume 97, 2017
Engineering Technology International Conference 2016 (ETIC 2016)
|
|
|---|---|---|
| Article Number | 01052 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/matecconf/20179701052 | |
| Published online | 01 February 2017 | |
Compressing Turbulence Effect in FSO using New Modulation Technique
Optical Research Group, Advanced Communication Engineering Centre of Excellence (ACE-COE), School of Computer & Communication Engineering, Universiti Malaysia Perlis (UNIMAP), Malaysia
* Corresponding author: norizan1123@gmail.com
Diffusers transmitter modulation to reduce the effect of atmospheric turbulence in free space optical communication system is described in this paper. This technique uses dual transmitters and dual receivers which are using differential mode for detection. The combination of these components produce superior modulation method especially to reduce scintillation index, to overcome signal detection with fix zero threshold and improve power received. In order to improve the performance of free space optical system, these three elements play an important role. The analysis result show that for receiving power dual diffuser modulation at 3 km distance propagation is 4.59dBm compared to conventional OOK using diffuser which only −7.6dBm and equivalent to 3dBm improvement or up to 40 percent better.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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