关键词: 跳波束技术, 干扰抑制, 服务质量均衡

Abstract: To address the problems of quality of service imbalance and inter-satellite interference, a low earth orbit beam-hopping satellite network is proposed, it can enhance the quality of service through inter-satellite quality of service balancing and interference suppression. Cells with different types of services have varying priority levels, and each cell should be allocated at least one-time slot in a beam-hopping time window. Therefore, a cell quality equalization algorithm to cluster inter-satellite cells is proposed. Since multiple satellites share the spectrum, severe inter-satellite interference diminishes cells' quality of service. Therefore, a dynamic interference suppression algorithm is introduced. Simulation results show that compared to the maximum elevation angle algorithm, the cell quality equalization algorithm reduces the inter-satellite quality of service disparity by 70% and achieves quality of service balancing. Compared to scenarios without interference suppression, the dynamic interference suppression algorithm ensures that the inter-satellite interference is always below the interference threshold, therefore improving the quality of service levels.

Key words: beam hopping technology, interference suppression, quality of service balancing