正交频分复用是一种多载波宽带数字调制技术。相比一般的数字通信系统，

它具有频带利用率高和抗多径干扰能力强等优点，因而适合于高速率的无线通信系统。-



OFDM Simulator



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MIMO OFDM Simulator:



OFDM.m: OFDM Simulator (outer function)





create_channel.m: Generates a Rayleigh fading frequency-selective channel, parametrized by the antenna configuration, the OFDM configuration, and the power-delay profile.





svd_decompose_channel.m: Since full channel knowledge is assumed, transmission is across parallel singular value modes. This function decomposes the channel into these modes.





BitLoad.m: Apply the bit-loading algorithm to achieve the desired bit and energy allocation for the current channel instance.

ComputeSNR.m: Given the subcarrier gains, this simple function generates the SNR values of each channel (each singular value on each tone is a separate channel).

chow_algo.m: Apply Chow s algorithm to generate a particular bit and energy allocation.

EnergyTableInit.m: Given the SNR values, form a table of energy increments for