一种新型的应急卫星通信VPN技术研究  

Research on a New Emergency Satellite Communication VPN Technology

作　　者：周前 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210000

出　　处：《计算机技术与发展》2018年第2期163-166,共4页Computer Technology and Development

基　　金：国家自然科学基金(61271234)

摘　　要：在处理我国公共安全突发状况和自然灾害时,利用卫星通信系统进行通信十分重要。一个好的卫星通信系统可以安全、快速、经济地完成通信任务,同时可以联动力量、指挥中心、决策支撑系统和现有移动、固定通讯网络构成统一的应急联动指挥系统。传统VPN技术一般应用于企业网在因特网等网络上的延伸,提供高性能、低价位的网络接入,在此基础上对其进行改进优化。通过向中国电信卫星通信公司租用一条数据专线,各终端通过大S卫星联入互联网,各应急平台和应急指挥中心通过VPN网关组成一个完整的应急系统,使用UDP协议与卫星传输数据,并用IPSec协议保护数据安全,构成在大S卫星通信网上的逻辑通信专网,使得各集团、各部门、各用户的卫星通信终端之间组成自主管理的通信专网。由于卫星通信网的独特优势,将使这样的通信专网具有非常好的应急通信鲁棒性。It is very important to use the satellite communication system to communicate in the process of dealing with public safety emergencies and natural disasters. An excellent satellite communication system can complete the communication task safely,quickly and economically. At the same time,it can join forces,command center,decision support system and the existing mobile,fixed communication network toconstitute a unified emergency linkage command system. Traditional VPN technology is generally applied to the enterprise network in the Internet and other networks on the extension,to provide high-performance,low-cost network access,with its improvement and optimization onthe basis. Through the China Telecom Satellite Communications Corporation to rent a data line, each terminal accesses into the Internetthrough the large S satellite,and the emergency platform and emergency command center form a complete emergency system through theVPN gateway. The use of UDP protocol and satellite for data transmission,and IPSec protocol to protect data security,a logical communication network is constituted on a large S satellite communication network,which makes the satellite communication terminals from the groupsor departments or users composed of self-management of the communications network. Due to the unique advantages of the satellite communication network,such a communication network will have unprecedented emergency communication robustness.

关 键 词：应急卫星通信 VPN技术 S卫星 IPSEC协议 UDP协议 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]