电信科学

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IEEE 802.11网络中质量驱动的视频传输技术研究综述

王海东   

  1. 太原科技大学电子信息工程学院 西安交通大学电子信息工程学院
  • 出版日期:2013-07-15 发布日期:2013-07-15
  • 基金资助:
    国家自然科学基金资助项目（No. 61272262）

Recent Advances in Quality-Driven Video Delivery over IEEE 802.11 WLAN

Wang Haidong   

  1. School of Electronic and Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China; School of Electronic and Information Engineering, Xi’an Jiaotong University
  • Online:2013-07-15 Published:2013-07-15

被引次数

5

摘要： 质量驱动的跨层技术是提高IEEE 802.11网络中视频传输服务质量的有效手段。传统传输控制技术的目标是降低分组丢失率、提高吞吐量等，但这些性能指标不能准确地反映终端的用户体验，也没有充分考虑视频数据的特点。质量驱动的跨层传输控制技术以提高终端用户的服务质量为直接目标，利用视频流的特点优化传输系统性能。介绍了IEEE 802.11协议关于服务质量的标准化进程，集中讨论了基于轮询和基于竞争的调度机制，并详细综述了两种机制下质量驱动的视频传输技术的最新研究成果及发展动向。

Abstract: Quality-driven video delivery is the key to ensure the quality of service for video transmission over IEEE 802.11 WLAN. The goals of traditional communication technology are to reducing packet loss, increasing throughput, and so on. However, the feature of video flows and experience of users fail to considerate in these targets. The enhancements for QoS support being defined in the IEEE 802.11 standard draft were introduced first. The state-of-the-art scheduling algorithms based on polling and based on contention were described in detail.

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