不同Nakagami-m信道仿真方法的性能

Investigation of different Nakagami-m channel simulation methods

通过仿真概率密度曲线逼近理论曲线的程度和程序运行效率两方面对生成Nakagami-m分布随机变量的几种典型方法———Brute force法、正弦求和法、逆变换法性能进行研究和比较.结果表明,无论是对理论曲线的逼近程度还是运行效率,逆变换法都是三种方法中最优的.Nakagami-m衰落信道仿真时应优先考虑逆变换法.

The paper investigated and compared three typical methods of generating Nakagami-m random variables i.e. Brute force method, sum-of-sinusoids method and inverse transform method with each other by the degree of simulation probability density curve approaching to theory＇ s as well as the efficiency of pro-gramming. The results indicated that inverse transform method is optimum, therefore the inverse transform should be used first in the Nakagami-m fading channel simulation.