针对IP视频会议基于网络的QoS综述

Survey on network-based QoS for IP videoconference

将深入探讨针对视频会议的 QoS 机制,从数据层和控制层两个层面上分别进行介绍,并深入地剖析各种机制的适用范围、优点以及它们存在的缺陷和问题。同时,特别针对视频会议的特点,提出改善视频会议的 QoS解决方案。其中控制层的接入控制机制对保障视频会议的 QoS 尤为重要。最后讨论了为视频会议实施 QoS 应该注意的问题以及当前技术存在的不足与有待进一步研究的 QoS 技术。

The most popular QoS mechanisms for videoconference were surveyed in this paper, and described from data plane and control plane in detail. The advantages and application range of these mechanisms were discussed respectively, as well as the existing shortcomings and problems . Additionally, especially to the features of the videoconference, the proper QoS solutions based on these mechanisms to improve the performance of videoconference were presented. It is known that admission control plays a important role in Qos for videoconference. Therefore a strong emphasis on it was laid. Finally some problems which should be paid attention to when deploying QoS for videoconference, as well as limitations of current technologies and future research issues of QoS for videoconference were discussed..