关键词: 空间信息网络, 资源分配, 用户体验结果（QoE）, 链路效能

Abstract: To improve impact of the bandwidth allocation on transmission efficiency of the data relay satellites, a bandwidth allocation method based on the QoE（Quality of Experience）-Aware of users is proposed. Considering the reliability of transmission with high dynamic inter-satellite links in the space information network, a combination access model based on multiple GEO satellites is established. The benefit of the multiple uplink transmissions by the LEO satellites is investigated. By setting the link utility function, the method quantifies QoE satisfaction level of users as a combination of link reward and cost, and the fairness allocation and link utility maximization can be accomplished with the Karush-Kuhn-Tucker method. Research results show that compared with Load-Balancing method and Best-SNR-First method, the QoE-Aware method can meet the QoE demands of user satellite and improve the access performance of the network as well.

Key words: space information network, resource allocation, Quality of Experience（QoE）, link utility