摘要
文中考虑多小区蜂窝系统中小区边缘用户受到来自其他小区间同信道干扰,分析了在Nakagami-m衰落信道下,用户和基站均为单天线时的多小区蜂窝系统性能,以获得干扰信号衰落参数m和干扰基站发射功率对系统性能的影响。采用概率密度函数(PDF)分析法推导了系统中断概率和平均误符号率(ASER)的闭合表达式,并进一步通过数值仿真来分析同信道干扰对系统性能的影响。仿真结果表明,系统的中断概率和ASER的解析曲线均与仿真结果一致,系统性能随着干扰信号衰落参数m和干扰功率的增加而降低。
The edge users at multi-cell cellular system are interfered from the other parity channel.This paper analyzes the multi-cell cellular system performance,in which the users and stations are single antenna,at Nakagami fading channel,to obtain the signal fading parameter m and the station transmitting power affecting the system performance.It presents the derivation closed expression of the system break probabitity and the average sign error rate using probability deusity function.It describes the influence of the parity channel interference to the system performance with the simulation way.The experiments show the analytied curves of break probability and average sign error rate and the simulated results are same.When the fading parameter m and the pouer of the interference signal increses,the system performance decreses.
出处
《信息技术》
2012年第1期109-112,共4页
Information Technology
