Multi-user maritime integrated sensing and communication resource allocation in auxiliary communication scenarios

The rapid development of marine science and technology, coupled with the growing needs of offshore operations, underscores the significance of studying offshore communication networks. This study addressed the communication and perception challenges posed by the complexity and variability of the marine environment and the mobility of ships, aiming to improve the performance of offshore operations. Through the construction of an integrated ship-based station model at the power level and comprehensive data validation and simulation analyses, this study revealed a linear relationship between the signal-to-noise ratio (SCNR) and the probability of detection, indicating that the probability of detection positively correlated with the SCNR. In practical multi-user scenarios, the shipborne ISAC base station needed to make a trade-off between communication and sensing functions to meet different SCNR requirements. By optimising the trajectory and power allocation of shipborne ISAC, this study successfully improved the communication rate and sensing performance, which further enhances the efficiency and safety of marine operations. The findings of this study were of great significance to the advancement of marine science and technology, laying a solid foundation for further research and the application of maritime communication networks.