ofdm.m为主程序，可以运行，将得到迭加噪声之后的误码率曲线，并与理论QPSK加高斯白噪声误码率曲线比较，两者将重合,ofdm.m-based program, you can run, will be after the noise superposition error rate curve, and with the theoretical QPSK plus white Gaussian noise bit error rate curves, which will coincide

详细介绍了OFDM的原理，是个很好的ppt!-Described in detail the principles of OFDM, is a good ppt!

ofdm sfdm we can get matlab source and displayed cdf, ber

OFDM中schmidl 的定时同步算法，包含不同信噪比下的性能-Schmidl in the OFDM timing synchronization algorithm, including the performance under different signal to noise ratio