卫星通信TCP特性及改进

TCP Characteristics of Satellite Communication and Its Improved Design

文章就卫星通信TCP性能改进进行了研究,分析了船载卫通站卫星通信通过TCP协议传播的一些不利于工作效率的特性,针对部分特性提出了改进方法,并进行了简单的测试,TCP协议作为一种可靠的通信协议,本身采取了一些保护数据安全传输的措施,但是这些措施往往是应用于有线网络,并不能很好地适应船载卫通站的通信保障需求。本文提出的改进方法主要是采用分析数据包丢失现象改进TCP传输的拥塞控制和慢启动策略。

This paper studies TCP performance improvement of satellite communications, and analyzes some unfavorable factors for operation efficiency when shipboard satellite communication signals of satellite communication stations are transmitted through TCP protocol, and proposes the improvement method and a simple test is performed. TCP protocol, as a reliable communication protocol, uses some protection means for secure transmission of data. However, these means are always apphed to wired network and can＇t meet the requirements of communication support of shipboard satellite communication station. The improvement method proposed in this paper mainly improves congestion control and slow start strategy in TCP transmission by analyzing data package lost situation.