This work discusses the modeling and the numerical investigation of Ro-IsOWC link between a low earth orbit LEO and geosynchronous earth orbit GEO satellite. 4-level quadrature amplitude modulation 4-QAM signal with orthogonal frequency division multiplexing OFDM technique has been used to transmit high-speed data between two satellites separated at 35,000 km link distance in outer space. The proposed link performance has been numerically evaluated under the impact of operating wavelength, transmission distance, input power, pointing errors, additional losses, and receiver aperture diameter. Signal-to-noise ratio SNR and received electrical power of the information signal are considered as the performance metrics to evaluate the link performance. Through numerical simulations, we report a successful transportation of 20Gbit/s-40GHz information between two satellites over a transmission distance of 35,000 km using the proposed Ro-IsOWC system. Also, an improved link performance has been investigated in this work by using a Square root module SRm technique at the receiver terminal for non-linearity compensation.

这项工作讨论了低地球轨道LEO和地球同步地球轨道GEO卫星之间Ro-IsOWC链接的建模和数值研究。具有正交频分复用OFDM技术的4级正交调幅4-QAM信号已用于在外太空中以35,000 km链路距离分离的两颗卫星之间传输高速数据。在工作波长，传输距离，输入功率，指向错误，附加损耗和接收器孔径的影响下，对所提议的链路性能进行了数值评估。信噪比SNR和信息信号的接收电能被视为评估链路性能的性能指标。通过数值模拟 我们报告了使用拟议的Ro-IsOWC系统在35,000 km的传输距离上成功在两颗卫星之间传输20Gbit / s-40GHz信息的过程。另外，在这项工作中，通过在接收器终端使用平方根模块SRm技术进行非线性补偿，研究了改进的链路性能。