Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications
Free-space optical (FSO) communication has received widespread attention as a high-bandwidth, low-latency communication technique. However, the scintillation effect caused by atmospheric turbulence leads to intensity fluctuations of the transmission signal, which, in turn, affects the performance of...
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MDPI AG
2024-09-01
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| Series: | Photonics |
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| author | Bai-Shan Zhao Peng-Fei Lv Yan-Qing Hong |
| author_facet | Bai-Shan Zhao Peng-Fei Lv Yan-Qing Hong |
| author_sort | Bai-Shan Zhao |
| collection | DOAJ |
| description | Free-space optical (FSO) communication has received widespread attention as a high-bandwidth, low-latency communication technique. However, the scintillation effect caused by atmospheric turbulence leads to intensity fluctuations of the transmission signal, which, in turn, affects the performance of the FSO communication system. This paper proposes a channel correlation-based adaptive power transmission for FSO communications. Based on the correlation between uplink and downlink turbulence channels, the power of the reverse transmission signal is adjusted by the fluctuation strength of the received uplink or downlink transmission signal and the channel correlation coefficient to improve the system’s performance. The proposed technique is investigated through a simulation using established uplink and downlink channels with different link distances and turbulence intensities. The simulation results show that the bit error rate (BER) performance of the proposed technique is significantly improved compared to the fixed threshold decision (FTD) technique, and it is close to the adaptive threshold decision (ATD) technique. The proposed technique provides an effective optimization scheme for FSO communications. |
| format | Article |
| id | doaj-art-0b37d4f64c9043de92bc314b7c8d5541 |
| institution | OA Journals |
| issn | 2304-6732 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-0b37d4f64c9043de92bc314b7c8d55412025-08-20T01:55:46ZengMDPI AGPhotonics2304-67322024-09-0111985910.3390/photonics11090859Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical CommunicationsBai-Shan Zhao0Peng-Fei Lv1Yan-Qing Hong2School of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaSchool of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaSchool of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaFree-space optical (FSO) communication has received widespread attention as a high-bandwidth, low-latency communication technique. However, the scintillation effect caused by atmospheric turbulence leads to intensity fluctuations of the transmission signal, which, in turn, affects the performance of the FSO communication system. This paper proposes a channel correlation-based adaptive power transmission for FSO communications. Based on the correlation between uplink and downlink turbulence channels, the power of the reverse transmission signal is adjusted by the fluctuation strength of the received uplink or downlink transmission signal and the channel correlation coefficient to improve the system’s performance. The proposed technique is investigated through a simulation using established uplink and downlink channels with different link distances and turbulence intensities. The simulation results show that the bit error rate (BER) performance of the proposed technique is significantly improved compared to the fixed threshold decision (FTD) technique, and it is close to the adaptive threshold decision (ATD) technique. The proposed technique provides an effective optimization scheme for FSO communications.https://www.mdpi.com/2304-6732/11/9/859adaptive power transmissionchannel correlationatmospheric turbulencefree-space optical communication |
| spellingShingle | Bai-Shan Zhao Peng-Fei Lv Yan-Qing Hong Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications Photonics adaptive power transmission channel correlation atmospheric turbulence free-space optical communication |
| title | Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications |
| title_full | Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications |
| title_fullStr | Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications |
| title_full_unstemmed | Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications |
| title_short | Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications |
| title_sort | channel correlation based adaptive power transmission for free space optical communications |
| topic | adaptive power transmission channel correlation atmospheric turbulence free-space optical communication |
| url | https://www.mdpi.com/2304-6732/11/9/859 |
| work_keys_str_mv | AT baishanzhao channelcorrelationbasedadaptivepowertransmissionforfreespaceopticalcommunications AT pengfeilv channelcorrelationbasedadaptivepowertransmissionforfreespaceopticalcommunications AT yanqinghong channelcorrelationbasedadaptivepowertransmissionforfreespaceopticalcommunications |