| 摘要: |
| 提出了一种基于二维马氏链的半速率话务模型,从理论上分析并计算了不同话务量时的阻塞概率、半速率承载话务比例及半速率的最佳开启门限.分析表明,随着半速率开启门限和话务量的增大,半速率信道承载话务量比例也将相应增加,从而会影响系统服务质量.文中提出的业务模型和分析方法为实际系统动态调整半速率开启门限提供了理论指导,所得到的不同载波数下、对应不同开启门限的最优话务量范围计算结果也可直接用于实际系统配置. |
| 关键词: 移动通信 动态半速率(DHR) 二维马氏链 业务模型 |
| DOI：10.3969/j.issn.1001-893X. |
| 投稿时间：2006-09-11修订日期：2007-01-14 |
| 基金项目: |
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| Research on the Modeling of Half Rate Function |
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| Abstract: |
| A half rate traffic model based on 2 -dimensional Markov chain is proposed,and the blocking probability, the corresponding ratio of traffics carried by half rate channels and the optimized half rate acti- vation threshold for different traffic intervals are analyzed and calculated theoretically. The analysis shows that the ratio of traffic carried by the half rate channels will increase along with the increment of the activation threshold and input traffic, thus the quality of service will deteriorate accordingly. The model and the calculation method can be used to instruct the dynamic adjustment of half rate activation threshold in real networks. The calculation results shown in this paper can also be applied to practical system configurations. |
| Key words: mobile communication,dynamic half rate(DHR),2-dimensional Markov chain,traffic model |
《电讯技术》编辑部 