研究目的
Analyzing the performance of FSO link under different modulation schemes such as ON-OFF keying (OOK), BPSK, 16-PSK, 2-PPM, 16-PPM, 4-QAM, 16-QAM under atmospheric and fog conditions.
研究成果
16-PPM is more tolerant to turbulence channel and fog conditions compared to other modulation schemes. The BER reduces as the turbulence strength goes from strong to weak for both weak and moderate fog conditions. The BER increases with the M value in M-PSK, M-QAM, but decreases as M value increases in M-PPM.
研究不足
The analysis does not consider dense fog conditions in strong turbulence due to their non-existence. The study is limited to the simulation environment and may not fully capture real-world conditions.
1：Experimental Design and Method Selection:
The paper analyzes the performance of FSO link under different modulation schemes under atmospheric turbulence and fog conditions. The turbulence is modeled as gamma-gamma distributed channel.
2：Sample Selection and Data Sources:
The analysis is based on theoretical models and simulations using MATLAB.
3：List of Experimental Equipment and Materials:
MATLAB software for simulation.
4：Experimental Procedures and Operational Workflow:
The performance of different modulation formats under different channel conditions is simulated.
5：Data Analysis Methods:
The BER is calculated for different modulation schemes under weak, moderate, and strong turbulence with light and moderate fog conditions.
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