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why do you put the received bits after remove cp step not after the fft step into the neural network? #2
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对,我也感觉论文里的Fig.2. 的system model和代码中定义的ofdm_simulate方法不一致! |
我最近还发现,源代码的session在初始化后又添加了计算节点,导致训练到后面会原来越慢,可以把mean_error_rate的计算函数放到初始化计算图之前 |
想问下这篇文章是叫什么名字 |
Power of Deep Learning for Channel Estimation and Signal Detection in OFDM Systems |
我也觉得应该fft之后再进行训练吧 |
您好,我还想请问一下,ofdm_simulate函数中的OFDM_data_codeword代表了什么意思,这数据分成两部分有点看不懂,希望大神能帮忙指点一下,多谢了 |
@lululuge 同问,有人指导一下么 |
@lululuge @maohuahuajiang 我的理解OFDM_data_codeword是传的数据,另外一个是导频。。 |
@josephzjw 能把联系方式发我邮箱么,想详细请教一下这个代码。 |
我觉得这个代码就没有做信道估计,只有Detection. 我看导频除了和数据统计独立之外,几乎没有区别。我们可以就此讨论下 |
@lcj1992517 我和你持相同的看法。我对论文质疑的地方是: |
我觉得论文是说DNN取代了“即利用接收导频信号和发送导频信号的数学关系做信道估计以及后续的信道均衡和信号解调”这一部分,直接恢复出来,但是有些代码我也看不懂,我的联系是916547299@qq.com,如果方便,联系一下我 |
Traditionally the complete ofdm procedure includes the fft step, why you train your channel just after remove cp?
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