摘要
为分析在各种功率谱下接收信号相关性参数及其近似计算,建立功率谱在典型均匀角分布、高斯分布及拉普拉斯等分布下的闭合函数表达式,提出近似方法和MIMO系统的接收信道模型。推导在复杂反射物环境下形成多类簇的多边波达信号分布,并得出各种组合分布情况下的无线信道衰落相关性特征。实例计算和仿真实验结果表明,表达式和部分近似法可更有效分析波达信号多种组合功率谱下MIMO系统接收信道衰落参数及性能。
To analyze the signal correlation parameters and their approximate calculation under various power spectrums,closed function expressions of power spectrum in typical uniform angular distribution,Gaussian distribution and Laplacian distribution were constructed,approximation methods and the receiving channel model of MIMO system were proposed.The multipath signal distribution in the multiple clusters of complex reactors was deduced,and the characteristics of wireless fading channel in various combinations of distributions were obtained.Results of the simulation indicate the expression and some part of approximation can be used to analyze the fading parameters,and the performance of the MIMO system under a variety of combined power spectrums.
作者
陈姜高路
周杰
吴鹏
CHEN Jiang-gao-lu;ZHOU Jie;WU Peng(School of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China)
出处
《计算机工程与设计》
北大核心
2018年第9期2719-2724,共6页
Computer Engineering and Design
基金
国家自然科学基金面上基金项目(61471153)
江苏省高校自然科学基金重大基金项目(14KJA510001)
