接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。

该代码参考论文Deep-Waveform: A Learned OFDM Receiver Based on Deep Complex Convolutional Networks中的源码进行的修改

多径衰落信道下OFDM仿真原创-demodulation.m 此程序为在多径衰落信道下OFDM系统的抗噪声性能。 其中包括cyclic prefix的插入；多径信道的模拟， 以及用pilot进行信道估计。

压缩包中含OFDM系统的完整仿真程序（MATLAB仿真），可直接运行OFDM.m文件可得到信号在各个阶段的状态波形图，代码注释详细！ 还有对应与代码对应的报告文档，详细介绍了OFDM的基本原理及各部分的作用以及程序代码的 详解。可直接用于课程设计报告的作业或者毕业论文的参考！ 具有较大的实用价值

这是一个matlab的OFDM仿真程序。比较16QAM、64QAM与QPSK的误码率性能比较；包括信源、信道的编码、解码、调制与解调、串并/并串转换、保护间隔、插入AWGN等。

说明： 这是一个完整的OFDM系统建模，包括主程序OFDM 调制模块，解调模块，调制解调模块中包括BPSK,QPSK,16QAM,64QAM, 主程序包括循环前缀添加，加窗处理，频谱图、PAPR计算，误码率统计等功能。 (This is a complete OFDM system modeling, including main program OFDM modulation module, a demodulation module, modulation and demodulation module include BPSK, QPSK, 16QAM, 64QAM, main program includes the cyclic prefix, windowing processing, the spectrum, PAPRcalculate the error rate statistics and other functions.))

课程作业，一个关于MIMO-OFDM的matlab仿真的小程序

Orthogonal Frequency Division Multiplexing (OFDM) is a powerful technique employed in com- munications systems suering from frequency selectivity. Combined with multiple antennas at the transmitter and receiver as well as adaptive modulation, OFDM proves to be robust against channel delay spread. Furthermore, it leads to signicant data rates with improved bit error performance over links having only a single antenna at both the transmitter and receiver. This project demonstrates OFDM with adaptive modulation applied to Multiple-Input Multiple- Output (MIMO) systems. We apply an optimization algorithm to obtain a bit and power al- location for each subcarrier assuming instantaneous channel knowledge. The analysis and sim- ulation is considered in two stages. The rst stage involves the application of a variable-rate variable-power MQAM technique for a Single-Input Single-Output (SISO) OFDM system. This is compared with the performance of xed OFDM transmission where a constant rate is applied to each subcarrier. The second stage applies adaptive modulation to a general MIMO system by making use of the Singular Value Decomposition to separate the MIMO channel into parallel subchannels. For a two-input antenna, two-output antenna system, the performance is compared with the performance of a system using selection diversity at the transmitter and maximal ratio combining at the receiver

OFDM 技术因能大幅提升通信系统的信道容量和传输速率、有效抑制多径衰落和抵抗码间 干扰，成为无线通信的核心技术。基于 LTE 系统物理层所使用的 OFDM 技术，分析子载波正交性 原理和调制过程，基于 MATLAB 构建了一个 OFDM 系统用于仿真。在搭建好系统后通过改变信道 编码模块来模拟不同信道编码方式，通过对误码率的观察得到结论:众多信道编码方式中能使系统 误码率最低的是 LDPC 编码，将其广泛应用于 OFDM 通信系统后可使系统性能更优异。

MIMO-OFDM无线通信技术及MATLAB实现包括无线信道的传播与衰落、OFDM概述、MIMO的信道容量、信道估计等方面，参考MIMO-OFDM无线通信技术及MATLAB