摘要
针对卫星终端通信服务资源管理优化分配问题,为提高卫星网络的性能和资源利用率,实现卫星网络资源的合理分配,通过建立卫星终端群接入系统模型,在采用吞吐量的呼叫接入控制算法基础上,对负荷门限进行自适应调整,根据接入激活因子设计业务抢占与排队策略,提出了一种自适应门限优先呼叫接入控制算法。仿真结果表明,改进算法使高优先级业务具有较低呼叫阻塞率,相对于经典算法能有效降低呼叫阻塞率,有效改善卫星终端群系统的性能,实现卫星网络资源的合理分配。
To achieve a reasonable distribution of satellite network resources through the establishment of a system model, a call access control algorithm based on adaptive threshold and priority is proposed. Firstly, the algorithm is based on the call access control on account of throughput to adjust the load threshold adaptively. Then business capture and queuing policy based on access activating factor is designed. Finally, the simulation results show that, compared with the classical algorithm, the proposed algorithm can effectively reduce the call blocking rate, improve the performance of satellite terminal group system, and achieve a reasonable distribution of satellite network resources.
出处
《计算机仿真》
北大核心
2017年第1期32-35,83,共5页
Computer Simulation
基金
自然科学基金项目(61540023)
辽宁省教育厅科学研究项目(L2013461)
