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文中基于CDMA2000 EV-DO系统,对通信系统接纳控制算法进行了研究。首先介绍了接纳控制在CDMA系统中的重要作用。然后研究了基于QoS的接纳控制判决条件,分析了在增加新的QoS流和切换过程中的系统资源预留打开条件。通过仿真方法分析了各种QoS流与BE流之间占用扇区带宽的换算,继而研究了基于扇区带宽的接纳控制算法。运用色阶的方式,介绍了一种CPU利用率的控制方法,研究了在不同CPU利用率的情况下的接纳控制算法。最后提出了两种基于扇区用户数的接纳控制算法,并分析了各自的特点。
Based on the CDMA2000 EV-DO system, this paper studies the admission control algorithm of communication system. First introduced the admission control in the CDMA system, an important role. Then, we study the admission control decision conditions based on QoS, and analyze the conditions for opening system resources reservation when adding new QoS flows and handovers. The conversion of occupying sector bandwidth between various QoS flows and BE flows was analyzed by simulation method, and then the admission control algorithm based on sector bandwidth was studied. This paper introduces a control method of CPU utilization and a control algorithm of admission control under different CPU utilization. Finally, two admission control algorithms based on the number of sectors are proposed and their respective characteristics are analyzed.