Stability control of multi-parameter adaptive wireless communication systems based on multi-Lyapunov function  

作　　者：Song Xiaoqi Dong Li Li Wenfa Tong Tinging Lei Lei 宋晓勤;Dong Li;Li Wenfa;Tong Tingting;Lei Lei(College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics;School of Information Technology,Beijing Union University)

机构地区：[1]College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China [2]School of Information Technology, Beijing Union University, Beijing 100101, P. R. China

出　　处：《High Technology Letters》2017年第4期375-383,共9页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.61572254,61301103)

摘　　要：With the occurrence of burst interference,bit error rate( BER) stability of the wireless communication system( WCS) always degrades significantly. To cope with it,a stability control algorithm is proposed,utilizing the stability theory of switched systems,which is specifically applicable for multi-parameter adaptive WCS with spectrum sensing ability,and it is capable of stabilizing BER within a reasonable range. Firstly,WCS is modeled as a switched system. Then,based on the multi-Lyapunov function,controlling rules are presented to enable the switched system to satisfy stable condition asymptotically. Finally,analysis and numerical simulation results demonstrate that the switched WCS with the proposed controlling rules is superior to conventional power-controlled WCS with or without state feedback control in terms of stability performance.With the occurrence of burst interference,bit error rate（ BER） stability of the wireless communication system（ WCS） always degrades significantly. To cope with it,a stability control algorithm is proposed,utilizing the stability theory of switched systems,which is specifically applicable for multi-parameter adaptive WCS with spectrum sensing ability,and it is capable of stabilizing BER within a reasonable range. Firstly,WCS is modeled as a switched system. Then,based on the multi-Lyapunov function,controlling rules are presented to enable the switched system to satisfy stable condition asymptotically. Finally,analysis and numerical simulation results demonstrate that the switched WCS with the proposed controlling rules is superior to conventional power-controlled WCS with or without state feedback control in terms of stability performance.

关 键 词：switched system stability control multi-Lyapunov function(MLF) power control burst interference 

分 类 号：TN92[电子电信—通信与信息系统]