摘要
分层卫星网络(MLSN)是下一代卫星网络的主要发展方向,其QoS问题成为制约其发展的重要瓶颈。本文从现有地面网络中的QoS模型出发,结合MLSN的特性,提出了一种适用于MLSN的QoS模型MLSN-DiffServ。该模型充分利用了区分服务中DSCP和PHB的概念以及MLSN的分层体系结构和多星选择接入机制,通过扩展DSCP和PHB的概念及实现方式,实现了一种适合MLSN的区分服务模型,仿真结果证明,该模型不仅可以应用于MLSN,而且有良好的性能表现。
Multi-Layer Satellite Networks （MLSN） is the trend of next generation satellite networks, but the QoS issue becomes the bottleneck of its development. From the existed QoS model and the features of MLSN, we bring forward one QoS model of MLSN based on diffserv, which is called MLSN-DiffServ. This model makes full use of the DSCP and PI-IB notion of DiffServ, and also the layered architecture and the multi-satellite selection strategy of MLSN. Finally the simulation result proves that this model fits the MLSN environment well and also have good performance..
出处
《软件》
2011年第6期84-89,共6页
Software
