of;
Computer;
Science;
and;
Technology,;
Tsinghua;
University,;
Beijing;
100084,;
China;
of;
Computer;
and;
Communication;
Engineering,;
University;
of;
Science;
and;
Technology;
Beijing,;
Beijing100083,;
China;
评估质量; 无线网络; 视频流; 优化; 跨层; 流媒体服务; 参考模型; 编码; 解码;