摘要
在电波散射丰富的移动通信信道中,当存在LOS(line-of-sight)分量时,可以直接用Rice理论统计模型来近似地代替待研究的信道。讨论了几种常见的计算机仿真Rice信道的方法,然后对其性能优劣进行了比较,并针对某些方法中存在的置疑,从理论与仿真上进行了分析,给出了结论:对Rice衰落信道进行仿真时必需一定功率谱形状的色高斯过程。
When there is Line-of-sight weight in the mobile communication channel with lots of scatter weights, the statistic model of Rice theory could be used to replace the channel that would be studied, This paper discusses several common methods that were used to simulate Rice channel in computer. Then their performance was compared and the doubts in some method were analyzed in both theory and simulation. And the conclusions that the simulation of Rice fading channels needs colored Gaussian noise processes with shape of certain power spectrum are given.
出处
《重庆邮电大学学报（自然科学版）》
2007年第5期546-550,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
关键词
莱斯衰落
仿真
概率密度函数
高斯色噪声过程
Rice fading
simulation
probability density function
colored Gaussian noise processes
