基于流量均衡和跨层技术的星群路由算法

A Traffic Balancing and Cross-layer Based Algorithm for Constellation Network

针对分布式星群网络业务通信QoS不高的问题,提出了一种基于流量均衡和跨层技术的分布式星群网络路由算法(TACA)。该算法首先通过跨层技术将物理层、MAC层的相关信息搜集起来,作为判断链路负载状况的依据;然后对不同类型的业务进行分类,根据链路负载状况和业务QoS级别选择不同的路由层次,从而均衡流量以提高QoS。仿真表明,该路由算法在一定程度上降低了星群的呼叫阻塞率和切换阻塞率,平衡了网络的负载,提高了网络吞吐量。

According to this problem,a traffic balancing and cross-layer based algorithm （TACA）for distributed constellation network is proposed. First,the routing algorithm is designed to gather the information of physical layer and MAC layer as the basis to judge the load conditions of links by cross-layer technology. Then it will classify the different types of businesses,and choose different routing strategy according to the load condition of links,so that flow can be balanced and the QoS will improve. Simulation results show that the routing algorithm can reduce call blocking rate and handover blocking rate of the constellation to a certain extent,whick is resulted to balanced network load and improved network throughput.