Research on Orthogonal Frequency Division Multiplexing for Wireless Communication Based on Multi-Mode Vortex Electromagnetic Wave

With the continuous development of mobile communication, the wireless communication industry has achieved good development. However, in the actual transmission of multi-mode vortex electromagnetic waves, there are problems such as multipath fading, frequency fading, delay fading and polarization, which seriously affect the quality of wireless communication. The emergence and application of orthogonal frequency division multiplexing (OFDM) technology can fundamentally solve the above problems. Therefore, this paper takes the application of “OFDM technology” as an example to build a powerful and practical Angel broadband wireless access system to improve the propagation quality of multi-mode vortex electromagnetic waves. Firstly, based on the analysis results of multi-mode vortex electromagnetic wave propagation, the principle of OFDM technology and the key technologies of OFDM system are introduced. Secondly, from the aspects of system and function design, system model design, system performance index design, system application effect, etc., the design and application of Angel broadband wireless access system are completed. The results show that Angel broadband wireless access system runs normally, reliably and stably, and the realization of each function module meets the design requirements and meets the practical application requirements. It is hoped that this study can provide effective reference for relevant practitioners.