弯管式卫星网络与区域路由

卫星网络(SN)主要包括两种体系结构:星上处理(OBP)和弯管(BP)．OBP由于性能高而得到广泛关注,而BP由于成本低仍然被一些系统所采用． BP系统没有星间链路(ISL),但需要地面信关站的支持．不同的BP系统有不同的信关站布局,系统不兼容将造成重复和浪费．区域路由(AR)方法是一种通用性较强的路由方法,既可以应用在OBP系统中,也可以应用在BP系统中．使用该方法可以让多种BP系统共享卫星和信关站资源．文中介绍了AR原理及其计算机模拟结果;引入了“连通分析”,综合考虑了系统的连通性和覆盖率,深化BP系统的分析．

Bent Pipe Satellite Network System and Area Routing Method

There are two kinds of architecture for the Satellite Network (SN): On-Board Processing (OBP) and Bent-Pipe (BP). Although OBP has been attracted more attention in the research area due to its performance advantage, BP is still used by some of the satellite systems for its low system cost. It is obvious that the incompatibility between BP systems may cause resource waste and thus sharing resource can help to cut down the system cost further. Therefore, a general SN routing method--Area Routing (AR) is proposed. AR can provide not only shared source for different SN system but also network access for sky flying satellites. In this paper, the connection of the satellites is discussed, and the concept of connection analysis is introduced. By using the connection analysis and simulation tool, the best configuration of satellite connection for both coverage and accessibility is demonstrated.