论文标题
Fauras：基于代理的框架，用于确保通过HTTP/2服务器推送自适应视频流的公平性
FAURAS: A Proxy-based Framework for Ensuring the Fairness of Adaptive Video Streaming over HTTP/2 Server Push
论文作者
论文摘要
在过去的几年中，HTTP/2视频流在多媒体技术的开发中引起了很多关注。在HTTP/2中，服务器推动机制允许服务器在单个请求中向客户端传递更多视频段，以解决请求爆炸问题。结果，最近的研究工作一直集中在利用此类功能上来增强流媒体体验，同时减少与请求有关的开销。但是，当前的工作仅优化单个客户的性能，而无需担心对同一网络中其他客户的可能影响。当多个流媒体客户竞争HTTP/1.1中的共享带宽时，他们可能会遭受不公平的困扰，这被定义为比特率选择中的不平等。对于HTTP/1.1，现有作品已证明网络辅助解决方案可有效解决不公平问题。但是，尚未研究为HTTP/2服务器推送使用这种方法的可行性。因此，在本文中，提出了一个基于代理的新型框架，以克服使用服务器推送的HTTP/2自适应流中的不公平问题。实验结果证实了所提出的框架在确保公平性，协助客户避免重新召回事件和降低比特率降解幅度的同时，同时保持服务器推送功能的机制，以确保拟议框架的表现超出。
HTTP/2 video streaming has caught a lot of attentions in the development of multimedia technologies over the last few years. In HTTP/2, the server push mechanism allows the server to deliver more video segments to the client within a single request in order to deal with the requests explosion problem. As a result, recent research efforts have been focusing on utilizing such a feature to enhance the streaming experience while reducing the request-related overhead. However, current works only optimize the performance of a single client, without necessary concerns of possible influences on other clients in the same network. When multiple streaming clients compete for a shared bandwidth in HTTP/1.1, they are likely to suffer from unfairness, which is defined as the inequality in their bitrate selections. For HTTP/1.1, existing works have proven that the network-assisted solutions are effective in solving the unfairness problem. However, the feasibility of utilizing such an approach for the HTTP/2 server push has not been investigated. Therefore, in this paper, a novel proxy-based framework is proposed to overcome the unfairness problem in adaptive streaming over HTTP/2 with the server push. Experimental results confirm the outperformance of the proposed framework in ensuring the fairness, assisting the clients to avoid rebuffering events and lower bitrate degradation amplitude, while maintaining the mechanism of the server push feature.
