基于MATLAB的OFDM系统仿真及性能分析吕爱琴.pdfVIP

22 10 2005 10 : 1006 - 9348( 2005) 10 - 0164 - 05 MATLAB OFDM 1 1 2 吕爱琴 , 田玉敏 , 朱明华 ( 1. , 710071; 2. , 200050) : ( OFDM ) OFDM , , ( CP) OFDM OFDM , MAT LA B , OFDM , : ; ; ; : TP302. 7 : A MATLAB SimulationandPerformanceAnalysisofOFDM System 1 1 2 LU A i- qin , T AN Yu - m in , ZHU M ing - hua ( 1. Scho o l of Com pu ter Sc ience and T e chno logy, X id ian U n ivers ity, X ipan Shanx i 710071, Ch ina; 2. Shangha i nstitu te ofM ic ro system and nfo rm a tion T echno logy Ch inese A cadem y of Sc iences, Shangha i 200050, Ch ina) ABSTRACT:OFDM is the key techno log y of 4G in the fie ld of m ob ile comm un ica tion. n th is a rticle OFDM bas ic pr inc iple is br iefly in troduced. T hen, the influence of CP and diffe rent channe l estim ation on the sy stem per form ance is em phatica lly analy zed respective ly in G auss and R ay le igh fading channe ls in the cond ition of idea l synch ron iza tion. Bes ides, based on the g iven system m odel O FDM system is compute r s mi u lated w ith MA TLA B languag e and the referentia l design procedu re is g iv en. F ina lly, the BER curves of CP and channe l estim ation are g iven and com pa red. The conc lus ion is sat isfacto ry. KEY ORDS:OFDM; S mi ula tion; CP; Channe l estmi a tion , [ 2] 1 OFDM , , O