摘要
针对传统Nakagami-m衰落信道仿真模型难以提供Nakagami-m衰落信道真实相位信息的问题,提出了一种基于正弦求和法和舍弃法的Nakagami-m复衰落信道仿真模型,该仿真模型不仅适用于衰落参数m的任意取值,而且包含Nakagami-m衰落信道的实际相位信息。首先根据Nakagami-m随机变量和独立同分布高斯随机变量之间的内在关系给出了生成Nakagami-m衰落信道包络的正弦求和法改进模型,然后利用舍弃法产生与包络对应的真实相位信息。仿真结果表明,该模型的包络以及相位分布等统计特性均与理论值相一致。
Traditional Nakagami-m fading channel simulation models can not provide the real phase information of Nakagami-m fading channel.Based on sum-of-sinusoids(SOS)method and rejection method,a novel complex Nakagami-m fading channel simulation model is proposed.The presented model allows arbitrary fading parameter m and contains the actual phase information of Nakagami-m fading channel.Firstly,the modified SOS model for generating Nakagami-m envelope is given based on the intrinsic relationship between Nakagami-m random variables and i.i.d Gaussian random variables,and then the true phase information corresponding to the envelope is implemented by rejection method.Simulation results verify that the statistical properties including envelope and phase distributions of the proposed model have a good fit with the theoretical results.
作者
周涛
吴猜
张燕华
Zhou Tao;Wu Cai;Zhang Yanhua(College of Computer and Information,Hohai University,Nanjing 211100,China)
出处
《电子测量技术》
2019年第13期36-39,共4页
Electronic Measurement Technology
