宽带卫星网络TCP性能分析

Performance Analysis of TCP for Broadband Satellite Networks

用卫星链路接入Internet或者自身组成一个宽带卫星网络并和Internet互联是卫星通信的重要发展方向.TCP的流量控制是Internet正常运行的基础,围绕着TCP流量控制的拥塞控制一直是Internet研究的一个热点.在长时延特性的宽带卫星网络环境下,当前广泛使用的TCP协议性能相应地会受到影响.文章分析了基于分组的宽带卫星网络中TCP的各种性能,并通过网络仿真对理论分析结果进行了验证.

Accessing Internet through satellite links or making interconnection between the Internet and broadband satellite networks is important directions in the satellite communication.The TCP flow congestion control is one of the current hot problems in the Internet research because the TCP flow control is the basis for the Internet to operate normally. Since the long delay characteristics of the broadband satellite links, the performance of the TCP employed widely nowadays is impacted accordingly. This paper presents and discusses the performance analysis of TCP for broadband satellite networks. Simulation results validate the theoretical analysis.