摘要
随着卫星互联网络技术的发展,对卫星网络协议的研究受到越来越多的关注。卫星网络与地面有线网络具有不同的物理特性和信道特性,当TCP协议直接应用于卫星链路时,TCP协议的通信机制使得其信道吞吐量等性能受到很大的影响。XTP协议具有适合于卫星链路数据传输的通信机制,分析了XTP协议的传输机制,设计了基于XTP协议的卫星网关方案,并对方案采用的协议分段、协议欺骗、数据传送机制和开发平台进行了分析和描述。研发的原理样机在卫星信道上进行了测试,测试结果表明,采用该方案实现的协议网关可以提高信道带宽的利用率80%左右。
With the development of satellite internet technology,studies on satellite network protocol are receiving growing atten- tions. Compared with ground network,the satellite network has different physical and channel features. When TCP protocol is used di- rectly on satellite link,the channel output would be greatly influenced. While the XTP protocol has suitable communication features for satellite link data transmission. Therefore, based on XTP analysis, the author provides the design of the XTP gateway, and makes analysis and description of the protocol section, spoofing, data transmission system and development platform. Finally, the prototype for this de- sign is tested on satellite channel;the test indicates that, the protocol gateway realized by this design increases the utilization of channel bandwidth by about 80%.
出处
《无线电工程》
2013年第9期10-13,53,共5页
Radio Engineering
关键词
XTP
协议欺骗
协议网关
卫星通信
XTP
protocol spoofing
protocol gateway
satellite communication
