基于AHP的分布式星群接入策略研究

Study for AHP-based access strategy in distributed constellation network

分布式星群网络是打赢未来信息化战争的有利武器,星群的接入技术对于提升我国空天信息获取能力具有重要意义。针对分布式星群网络高动态拓扑导致资源利用不充分的问题,提出了一种基于层次分析法的分布式星群网络接入策略。该接入策略首先是利用层次分析法动态计算资源利用率各指标权重;其次是根据各卫星节点的实时资源情况,动态调整资源利用率的权重。仿真表明,该接入策略降低了分布式星群网络的新呼叫阻塞率和强制中断率,有效地解决了星群网络资源利用率问题,提高了星群网络群内业务分配的合理性。

The distributed constellation network is a powerful weapon to win the future information warfare. The access strategy is of great significance in distributed constellation network for promoting the ability to obtain aerospace information. An access strategy based on the Analytic Hierarchy Process （AHP） is proposed for the characteristics of the distributed constellation network,such as high dynamic topology and easily load utilization of satellite resources imbalances. Firstly,the weights of various indicators for the resource utilization rate are dynamically calculated using the analytic hierarchy process. Secondly,the resource utilization rate is dynamically adjusted according to the real time resources status of each satellite node. The simulation results demonstrate that the new call blocking rate and the forced discontinuity rate can be reduced by using the proposed strategy,thus solving the load balancing problem effectively and improving the allocation rationality of the group business in the distributed constellation network.