基于传感器的移动流媒体码率控制方法  

Sensor-based Adaptive Rate Control Method for Mobile Streaming

作　　者：熊丽荣[1] 尤日晶 金鑫[1] XIONG Li-rong;YOU Ri-jing;JIN Xin(College of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]浙江工业大学计算机科学与技术学院,杭州310023

出　　处：《计算机科学》2018年第10期124-129,共6页Computer Science

基　　金：浙江省重大科技专项重大工业基金项目(2012C11026-2);杭州市重大科技创新专项基金项目(20132011A16)资助

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。Mobile terminal video streaming service has been paid more and more attention,and intelligent terminal rate adaptation mechanism has become a research hotspot.It costs plenty of network traffic for the mobile users to watch high-definition movies.When users are not interested in the movies,or the terminals are far away from users,watching HD movies will not bring good experience and will waste a lot of wireless network traffic.This paper designed a sensor-based rate adaptive decision model,taking into account the users’watching location,interests and equipment status.The sensor-based rate adaptive decision model can optimize the tranditional rate decision mechanism for designing sesor-based hybrid rate decision method.The experiments show that the proposed sensor-based rate adaption model can effectively save the wireless network bandwidth resources in the case of insufficient network bandwidth.

关 键 词：移动流媒体传输 多目标优化 码率控制 传感器 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]