OAM beam and modal selection algorithm-based misalignment system

Liangang Chi; Gaoming Duan

doi:10.1117/12.2661318

9 December 2022 OAM beam and modal selection algorithm-based misalignment system

Liangang Chi, Gaoming Duan

Proceedings Volume 12492, International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022); 124920N (2022) https://doi.org/10.1117/12.2661318
Event: International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022), 2022, Wuhan, China

Abstract

Orbital angular momentum (OAM), a new modulation degree of freedom, has the potential to significantly improve frequency spectrum. Alignment and static are, however, required for the OAM communication system based on uniform circular array (UCA), which is difficult to achieve. A beam selection scheme based on OAM is proposed and matching beam pair is obtained by beam scanning. To eliminate intermodal interference caused by misalignment, a modal selection algorithm is proposed. The simulation results demonstrate that the beam matching scheme can effectively address the issue of system performance degradation caused by misalignment. By selecting transmission modes, intermodal interference can be reduced.

Citation Download Citation

Liangang Chi and Gaoming Duan "OAM beam and modal selection algorithm-based misalignment system", Proc. SPIE 12492, International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022), 124920N (9 December 2022); https://doi.org/10.1117/12.2661318

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