Abstract:The OFDM signal is analyzed as a continuous stochastic processes and the closed form expression of correlation function between any two given time instant is derived. When the sampling rate increases, the correlation increases quickly and the peak-to-average power ratio of oversampling OFDM signal changes neglectably. Especially, when oversampling factor is 2, the covariance matrix is analyzed. The results of analysis and simulation denote that all samples in one symbol are approximately independent. According to the result, the probability distribution function of peak-to-average power ratio is obtained.
雷霞; 李少谦; 唐友喜. 过采样OFDM信号峰均功率比统计特性分析[J]. 电子与信息学报, 2005, 27(3): 369-372 .
Lei Xia; Li Shao-qian; Tang You-xi. Peak-to-Average Power Ratio of the Oversampling OFDM Signals. , 2005, 27(3): 369-372 .