宽带卫星网络多媒体大容量数据短时延传输方法  

A Short Time Delay Transmission Method for Multimedia Large Capacity Data in Broadband Satellite Network

作　　者：刘尚昆 LIU Shangkun(China Media Group,Beijing 100859,China)

机构地区：[1]中央广播电视总台,北京100859

出　　处：《电视技术》2022年第12期146-151,共6页Video Engineering

摘　　要：随着卫星通信技术的不断发展,利用卫星建立高带宽数据传输通路,目前已经成为通信领域的一项关键手段。对于传媒行业而言,资讯的高速传播是保证时效性的关键。因此,利用宽带卫星网络进行多媒体大容量数据传输,就成为当前传媒技术领域的一个关键点。在这一方向上,如何尽可能缩短时延,是目前行业内着重研究的问题。基于此,围绕宽带卫星网络展开探讨,特别从多媒体大容量数据短时延传输的角度,对相关技术及方法进行探讨。传统网络利用TCP协议进行传输,由于卫星网络情况复杂,传统TCP协议不能很好地支撑。为此,提出面向宽带卫星网络建立特殊的传输控制协议,显著降低卫星网络的端到端处理时延。通过上述方式共同实现时延的缩短,进而保障通信的高实时性。With the continuous development of satellite communications, it has become a key means to establish a high bandwidth data transmission channel by using satellites in the communications field. For the media industry, the high-speed transmission of information is the key to ensure timeliness. Therefore, the use of broadband satellite networks for multimedia mass data transmission has become a key point in the field of media technology. In this direction, how to shorten the delay as much as possible is the focus of research in the industry. Based on this, this paper discusses the broadband satellite network, especially the related technologies and methods from the perspective of short-time delay transmission of multimedia large capacity data. The traditional network uses TCP protocol for transmission. Because of the complexity of satellite network, the traditional TCP protocol can not be well supported. Therefore, a special transmission control protocol for broadband satellite networks is proposed to significantly reduce the end-to-end processing delay of satellite networks. Through the above methods, the delay can be shortened together to ensure high real-time communication.

关 键 词：卫星网络 多媒体传输 低时延 单播路由 

分 类 号：TN948.14[电子电信—信号与信息处理]