FSMS无线流媒体传输模型  

FSMS wireless streaming media transmission model

作　　者：袁健[1] 江以玲 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《计算机工程与应用》2014年第16期113-117,122,共6页Computer Engineering and Applications

摘　　要：无线流媒体传输技术可以满足用户利用无线网络实现在线视频播放,但较恶劣的无线网络环境使在线流媒体,特别对于需实况转播的流媒体系统,视频画面可能出现延迟、抖动和失真等问题,这在很大程度上影响了用户观看视频的直观感受。为了降低无线流媒体传输技术对无线网络环境的要求,提高无线视频传输的QoS(Quality of Service,服务质量),在国外视频分帧传输的思想上,提出一种FSMS(Frame Splitting Multichannel Streaming,分帧多信道传输)无线流媒体传输模型,并且基于该模型在Android移动平台上设计并实现了一整套无线流媒体传输系统。系统测试表明,即使在大量帧丢失的较恶劣网络环境下,运用此模型可以显著提高无线流媒体视频播放的流畅性。Wireless streaming media transmission technology can meet the needs of online video playback over wireless network. But some problems of video picture quality such as delay, jitter and distortion may occur in the poor wireless network environment especially for lively broadcasted streaming media system, which influences the intuitive feeling of video watching to a large extent. In order to reduce the requirements of wireless streaming media transmission technology to wireless network and improve the QoS（Quality of Service）of wireless video transmission, this paper presents a FSMS model（Frame Splitting Multichannel Streaming）for wireless streaming media transmission which is based on the theories of video frame split-ting transmission abroad. And a whole wireless streaming media transmission system based on this model is designed and implemented successfully on Android platform. System tests demonstrate that this model significantly improves the smoothness of the video played on mobile devices in the presence of great frame losses over unreliable wireless network.

关 键 词：无线流媒体 视频分帧 多信道 实况转播 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]