Co-simulation of Microwave Photonics and Wireless Communication

The microwave photonics (MWP) plays an increasingly important role in high-capacity data transmission. However, challenges in photonics, including optical/electrical conversion, multimodal signal transmission, and data transfer in complex environments, demand more advanced simulation tools. This paper focuses on addressing the challenge in the coexistence of microwave photonics and wireless communication simulations, aiming to develop a software capable of cross-domain and multi-scale simulation for optoelectronic integration. We have overcome six critical technological challenges: the development of a high-precision microwave photonics visualization platform, cross-domain co-transmission of multimodal microwave Photonics signals, an open design architecture with ongoing iterative upgrades, and multi-dimensional cross-domain microwave photonics baseline coupling simulation. A novel optoelectronic integration simulation software was independently developed using a combined design approach of Python and Matlab. This software employs advanced cross-domain and multi-scale simulation models, successfully simulating multi-scale issues such as optical/electrical, time/space/frequency. Firstly, the most notable features of this software is the support for cross-domain co-transmission of multimodal signals, achieving significant advancements in key parameters like frequency and bandwidth. Secondly, considering that traditional Doppler effect models are mainly based on narrowband signals, we proposed a new wideband Doppler effect model based on frequency domain zero reset (FDZR) method which is integrated in the self-developed software. In the simulation validation phase, the software demonstrated support for high-mobility wireless communication with target movement speeds of up to 800 km/h, and microwave photonics aspects: instantaneous bandwidth up to 20 GHz, frequency up to 200 GHz, with a compatibility rate of 91.7459% with mainstream simulation software.