HARQ Transmission Method Based on Adaptive Coding Preprocessing

To meet the performance requirements in a complex military communication environment, an HARQ transmission scheme based on adaptive coding and precoding technology is proposed. This scheme dynamically adjusts the Modulation and Coding Scheme and transmission power according to the throughput feedback from test data to optimize the HARQ system’s performance and ensure reliable transmission under low Signal-to-Noise Ratio conditions. Simulation results demonstrate that the proposed precoding method and adaptive HARQ strategy are effective. Compared to traditional HARQ methods, the proposed approach can significantly improve throughput, reduce the number of retransmissions, and achieve a better balance between these performance metrics.