计算机科学 ›› 2018, Vol. 45 ›› Issue (10): 124-129.doi: 10.11896／j.issn.1002-137X.2018.10.024
熊丽荣, 尤日晶, 金鑫
XIONG Li-rong, YOU Ri-jing, JIN Xin
摘要： 移动端视频流服务日益受到重视,智能终端码率自适应机制成为研究热点。当用户在移动端观看高清电影时需要消耗大量的网络流量,然而当用户不处于观影状态、对电影不感兴趣以及观看电影距离过远时,观看高清电影并不会给用户带来良好的体验,还会造成大量无线网络资源的浪费。文中设计了基于传感器的码率决策模型,综合考虑了用户观看位置、用户兴趣和设备状态。传感器决策模型可以优化传统的码率决策机制,因此设计了基于传感器的混合码率决策方法。实验证明,该方案在无线资源紧张的情况下能够有效节约无线网络的带宽资源。
中图分类号:
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