多波束智能天线对改善移动通信性能的分析  

An Analysis on Improving Mobile Communication Capability by Using Multiple Beam Smart Antenna

作　　者：陈华础[1] 

机构地区：[1]南京电子技术研究所,江苏省南京市210013

出　　处：《电子工程师》2005年第9期21-25,共5页Electronic Engineer

摘　　要：根据蜂窝移动通信信道的统计模型,分析了同频干扰的统计特性,得到了以同信道小区复用因子、智能天线波束数目、旁瓣电平、同频干扰均值、方差以及射频保护比为参数的中断概率的表达式。计算表明,在现有蜂窝移动通信系统中采用智能天线,可以显著改善系统的载波干扰比,增加系统容量。In this paper, the statistic character of same frequency interference is analyzed according to the statistic model of channels in cellular mobile communication. The expression of interruption probability is obtained with a co-channel cell multiplex factor, numbers of smart antenna beam, side robe level, same frequency interference mean and variance, radio frequency protection ratio as parameters. Calculation results indicate that system carrier-to-interference-ratio （CIR） can be improved observably and system volume can be multiplied availably by using smart antenna in the existing cellular mobile communication system.

关 键 词：蜂窝移动通信 多波束智能天线 同频干扰 中断概率 载波干扰比 

分 类 号：TN929.5[电子电信—通信与信息系统]