HTTP/3, the latest evolution of the Hypertext Transfer Protocol, utilizes QUIC, a new transport protocol leveraging UDP to overcome limitations such as connection time and head-of-line blocking prevalent in HTTP/2. This advancement is enhanced by the Extensible Prioritization Scheme (EPS), which introduces a flexible prioritization framework for improving website resource delivery. This paper proposes a mixed scheduling mechanism that delivers using mixed incremental and non-incremental resource delivery and adheres to EPS urgency levels to improve the QoE. Additionally, we propose an EPS priority mapping to enhance the QoE further. This mapping is based on the priority indicated by the Chromium browser and the resource type. The result of the experimental evaluation indicates that the proposed mechanism and mapping improve commonly-used website performance measures for sites featuring a comparatively large number and size of resources.

翻译：HTTP/3作为超文本传输协议的最新演进版本，采用基于UDP的新型传输协议QUIC，以克服HTTP/2中普遍存在的连接时间与队头阻塞等局限性。可扩展优先级方案（EPS）通过引入灵活的优先级框架优化网站资源交付，进一步增强了这一技术进步。本文提出一种混合调度机制，采用增量式与非增量式资源混合交付策略，并遵循EPS紧急等级以提升体验质量（QoE）。此外，我们提出一种基于Chromium浏览器所指示优先级及资源类型的EPS优先级映射机制，以进一步优化QoE。实验评估结果表明，所提出的机制与映射方案能够有效改善资源数量与体积均较大的常用网站的性能指标。