Study On Optical Communications, Volume. 50, Issue 3, 23007501(2024)
Signed Optical Quadrature Spatial Modulation in Free Space Optical Communication
Figures & Tables(7)
Fig. 2. Comparison of spectral efficiency of different modulation methods when K=4
Fig. 3. Bit error rate analysis of different modulation modes with the same spectrum efficiency
Fig. 4. Bit error rate performance comparison of different modulation methods when K=4
Fig. 5. Bit error rate performance comparison of SOQSM schemes under different turbulence intensities
Table 1. System parameters
View tableView in ArticleTable 1. System parameters
参数 数值 发射机孔径尺寸/cm 7.5 发射机孔径间距/mm 40 接收孔径直径/cm 20 发散角θ/mrad 2 响应度Re 0.5 光学效率Oeff 0.8 抖动标准差/cm 30 1 km处对应的光束半径/m 2.5
Table 2. Spectrum efficiency of different OSM techniques
View tableView in ArticleTable 2. Spectrum efficiency of different OSM techniques
调制方式 频谱效率 OSM ηOSM=log2Nt+log2K OQSM ηOQSM=2log2Nt+log2K SOQSM ηSOQSM=4log2Nt+log2(K 4)
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Hui ZHAO, Liang LIU, Lili HAN, Yulin QIN, Junnan LI. Signed Optical Quadrature Spatial Modulation in Free Space Optical Communication[J]. Study On Optical Communications, 2024, 50(3): 23007501
Paper Information
Category: Research Articles
Received: May. 18, 2023
Accepted: --
Published Online: Jul. 19, 2024
The Author Email: ZHAO Hui (zhaohui@cqupt.edu.cn)
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