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.
出处
《电子工程师》
2005年第9期21-25,共5页
Electronic Engineer
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
cellular mobile communication, multiple beam smart antenna, same frequency interference,interruption probability, CIR
