当前位置: X-MOL 学术Int. J. Satell. Commun. Netw. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Geographical addressing strategy for space‐ground integrated network
International Journal of Satellite Communications and Networking ( IF 1.7 ) Pub Date : 2020-08-10 , DOI: 10.1002/sat.1373
Yunlu Xiao 1 , Tao Zhang 1 , Meng Sun 1
Affiliation  

To provide a connection between low earth orbit (LEO) satellite network and terrestrial Internet, a geographical addressing strategy for LEO network is proposed in this paper. When the IP geo‐subnet is divided based on location, the terrestrial users inside and satellite routers above each subnet could be allocated and maintain IP addresses under the regulation of IP network. The addressing strategy is implemented in the first hop and last hop of packet transmission. This paper proves that the application of geo‐subnets could effectively reduce the route table size and generation time in large‐scale space‐ground integrated network as well as maintain the stability of route table when the user condition alters. The performance loss of abnormal addressing caused by the change of satellite coverage would decrease with the reduction of geo‐subnet area. However, the decrease rate would decline during the subnet subdivision and therefore has limited optimization for abnormal addressing. The routing broadcast strategy proposed in this paper could effectively reduce the system packet loss brought by abnormal user at the same geo‐subnet division. Simulation confirms that the geographical addressing strategy combined with routing broadcast optimization in this paper could achieve more than 90% network throughput while reducing 76% of the routing cost.

中文翻译:

空地一体化网络的地理寻址策略

为了提供低地球轨道(LEO)卫星网络和地面Internet之间的连接,本文提出了LEO网络的地理寻址策略。当IP地理子网按位置划分时,可以分配内部的地面用户以及每个子网上方的卫星路由器,并在IP网络的监管下维护IP地址。该寻址策略在分组传输的第一跳和最后一跳中实现。本文证明,地理子网的应用可以有效地减小大型空地综合网络中路由表的大小和生成时间,并在用户条件变化时保持路由表的稳定性。卫星覆盖范围的变化引起的异常寻址的性能损失将随着地理子网面积的减少而减少。但是,减少率在子网细分期间会下降,因此对于异常寻址的优化有限。本文提出的路由广播策略可以有效减少同一地域子网中异常用户带来的系统丢包。仿真证实,本文中的地理寻址策略与路由广播优化相结合,可以实现90%以上的网络吞吐量,同时降低76%的路由成本。
更新日期:2020-08-10
down
wechat
bug