研究目的
Investigating the performance of two proposed systems for efficient unidirectional free space optical (FSO) cooperative communication: one with only transmit laser selection (TLS) and the other using optical spatial modulation (OSM) along with TLS, over Gamma-Gamma (G-G) fading channels with and without pointing errors.
研究成果
The proposed TLS and TLS-OSM systems for FSO cooperative communication show improved performance over conventional methods, with the TLS system providing a significant SNR gain. The study highlights the benefits of using multiple lasers for selection and the advantages of combining TLS with OSM for enhanced spectral efficiency.
研究不足
The study is limited to unidirectional FSO cooperative communication and does not consider bidirectional communication. The analysis is based on specific atmospheric conditions and may not be applicable under all scenarios.
1：Experimental Design and Method Selection:
The study proposes two systems for FSO cooperative communication and analyzes their performance over G-G fading channels with and without pointing errors. Theoretical models include the G-G channel model and the analysis of pointing errors.
2：Sample Selection and Data Sources:
The analysis is based on theoretical models and simulations, with parameters such as distance between nodes, aperture sizes, and atmospheric conditions specified.
3：List of Experimental Equipment and Materials:
Parameters include transmitter aperture size, receiver aperture diameter, divergence angle, transmit power, responsivity, optical efficiency, and standard deviation of noise.
4：Experimental Procedures and Operational Workflow:
The study involves performance analysis in terms of outage probability and ASEP, comparing the proposed systems with conventional methods under various conditions.
5：Data Analysis Methods:
The analysis includes mathematical modeling and Monte Carlo simulations to verify analytical results.
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