A simple Octave scr ipt where a BPSK modulated signal is transmitted on the 52 used subcarriers, may be used for understanding generation of an OFDM signal. The scr ipt is loosely based on 802.11a specification.

这是mimo ofdm系统的仿真程序，代循环前缀，加性高斯噪声，双发双收的系统，-Channel estimation for a MIMO-OFDM system estimation technique subcarriers

OFDM系统，子载波数目1024，前缀数目256，循环数目256，加入了高斯白噪声-OFDM system, the number of subcarriers 1024, the number prefix 256, the cycle number of 256, by adding a Gaussian white noise

A probable way of reducing PAPR (peak to average power ratio) in OFDM by changing the phase of some of the subcarriers.