摘要
提出了一种新的应用于无线网络的呼叫接入控制算法.该算法采用自回归滑动平均(ARMA)直接对切换呼叫掉线数建模,预测下一时刻可能的掉线数目,据此反馈更新资源预留门槛(Th).仿真结果表明,无论是在中业务负载,还是高业务负载下,该算法都能在提高系统统计复用增益(任意时刻系统允许接入呼叫连接数)的同时满足目标掉线概率的要求.
In this paper, a novel measurement-based call admission algorithm for wireless/mobile networks is presented. It uses auto regressive moving average （ARMA） model directly based on current and previous dropping numbers to forecast the next possible number of handoff dropping calls, and then updates the reservation threshold. Simulation results suggest that under both medium and heavy traffic load, the algorithm can increase statistical multiplexing gain while meeting the target handoffdropping probability.
出处
《小型微型计算机系统》
CSCD
北大核心
2007年第4期615-618,共4页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(60496315)资助
国家"八六三"高技术研究发展计划项目(2003AA12331005)资助.
关键词
呼叫接入控制
无线移动网络
时间序列分析
服务质量
call admission control
wireless/mobile networks
time series analysis
quality-of-service
