摘要
基于IP网络的视频会议系统已被广泛应用,但是由于IP网络不保证分组的可靠交付,导致视频会议信号传输过程中出现延时、抖动等影响视频传输质量的情况发生。针对基于网络的视频会议系统缺少对流媒体数据包在传输过程中的质量管理问题,提出了在视频会议系统及其网络中使用RSVP协议。RSVP协议作用是在网络中提前预留视频信号所需网络带宽或预留网络中剩余带宽,通过这种方式尽可能地降低因网络带来的视频信号传输问题。文章在理论上分析了RSVP协议预留带宽的原理和计算方法,为网络在传输视频信号时提供更好服务提供一种解决方案。
Video conferencing systems have been widely used which based on IP networks, however, as the IP network does not guarantee the reliable delivery of packets, during transmission that cause delays and jitter in the video conference signal as result affect the video transmission quality occur. Aiming at the lack of quality management of streaming media packets during the transmission of network-based video conferencing systems, it is proposed to use RSVP protocol in the video conference system. The role of RSVP protocol is to reserve the network bandwidth or reserve the remaining bandwidth in the network required by the video signal in advance, in this way, the video signal transmission problems caused by the network are reduced as much as possible. The article theoretically analyzes the principle and calculation method of RSVP protocol reserved bandwidth, and provide a solution for the network to provide better services when transmitting video signals.
作者
张国军
柳刚刚
李思阳
顾天一
朱昊
Zhang Guojun;Liu Ganggang;Li Siyang;Gu Tianyi;Zhu Hao(66139 Troop;66132 Troop,Beijing 100144,China)
出处
《信息通信》
2020年第7期81-83,共3页
Information & Communications
关键词
视频会议
传输质量
网络
RSVP
Video Conference
Transmission Quality
Network
RSVP
