基于对比BPSK系统的OFDM仿真结果分析,把N个子载波上的传输符号通过IFFT，然后并串转换后传输，在接收端通过串并转换后再进行FFT变换-BPSK OFDM system based on comparative analysis of simulation results, the N sub-carrier transmission symbols by IFFT, and the string conversion and transmission, the receiver string and converted by the FFT, then