基于微蜂窝的呼叫接入控制策略研究  

Call Admission Control Policy based on Microcellular

作　　者：杨明[1] 赵晓博[1] 狄卫国[1] 韩兵欣[1] 

机构地区：[1]石家庄铁道学院电气与电子工程分院,河北石家庄050043

出　　处：《通信技术》2008年第8期36-37,40,共3页Communications Technology

基　　金：国家自然科学基金资助项目(60774050)

摘　　要：分析了以微蜂窝为主的呼叫接入控制策略(call admission control Policy,CACP)中信道分配方案和系统呼损指标的变化规律。对理论公式与仿真模型的结果进行了比较,得出结论:基于一定话务量水平,对系统呼损率、中断率进行限制,采用仿真统计的方法,可以确定系统的可行信道分配解集合。在成本系数不同取值下,根据成本目标函数得到最佳信道数。呼损率优先考虑的情况下,采用二次接入策略和最优值可以优化系统性能。The channel assignment scheme and the variation regularity of call loss criterion are analyzed. It can be concluded by comparing the theoretical results with the simulation results that： under a certain telephone traffic level, with the restrictions of call loss probability and outage probability, the feasible channel assignment solutions aggregate can be determined by using the statistical simulation. With different cost coefficients, the optimal channel number can be determined according to the cost objective function. When the call loss probability is top-priority, the performance of the system can be optimized by using the reconnect scheme and the optimal value.

关 键 词：呼叫接入控制策略 信道分配 呼损指标 呼损率 

分 类 号：TN91[电子电信—通信与信息系统]