Design of Fading Channel Simulator Based on IIR Filter Using Genetic Algorithm  

作　　者：Haofeng Wang Siwei Du Ning Guan 

机构地区：[1]School of Information and Electronics, Beijing Institute of Technology, Beijing, China

出　　处：《International Journal of Communications, Network and System Sciences》2017年第5期105-115,共11页通讯、网络与系统学国际期刊（英文）

摘　　要：This article designs a Rayleigh fading channel simulator using IIR filter (called Doppler filter), which is used to approximate the Jakes Doppler spectrum. We mainly focus on the design of Doppler filter and model it as an optimization problem. Non-convexity of the problem is proved in this paper and genetic algorithm (GA) is used to optimize it, which has never been used before in this area. Simulation result shows that GA converges at the solution corresponding to very accurate approximation of Jakes PSD. Finally, several statistical characteristics of the simulator are verified, including correlation functions and level-crossing rate (LCR), all of which match the theoretical predictions pretty well.This article designs a Rayleigh fading channel simulator using IIR filter (called Doppler filter), which is used to approximate the Jakes Doppler spectrum. We mainly focus on the design of Doppler filter and model it as an optimization problem. Non-convexity of the problem is proved in this paper and genetic algorithm (GA) is used to optimize it, which has never been used before in this area. Simulation result shows that GA converges at the solution corresponding to very accurate approximation of Jakes PSD. Finally, several statistical characteristics of the simulator are verified, including correlation functions and level-crossing rate (LCR), all of which match the theoretical predictions pretty well.

关 键 词：CHANNEL SIMULATOR GENETIC ALGORITHM Jakes Biquad IIR 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]