Synthetic Channel Generation using Generative Adversarial Networks

Student thesis: Master thesis (including HD thesis)

  • Mads Bangshaab
4. term, Signal Processing and Computing, Master (Master Programme)
In this report Generative Adversarial Networks (GAN) are designed and implemented with the purpose of generating synthetic responses of a radio channel. An investigation of relevant theory of neural networks and specifically GANs is conducted and based on this, choices with regards to architectures are made.
For the purpose of training and evaluating the GANs, synthetic channel response data is generated based on a stochastic model. From this data relevant statistical properties are computed as to form a basis for evaluation.
Two different realisations of a GAN are then designed based on the theory reviewed and relevant design choices made regarding the training data. These two realisations are based on a FCNN and a CNN respectively.
Through testing it is seen, that the DCGAN has the best performance. The DCGAN is then evaluated with regards to the robustness of the network with regards to noise added to the training data and the size of the data set. Based on these findings, the model used for the DCGAN is then trained anew with another data set containing real measurements, where both training data is limited and noise are included in the measurements.
Through testing of the GAN it is found, that though not achieving perfect results, the use of GANs for stochastic radio channel response generation is feasible.
LanguageEnglish
Publication date3 Jun 2020
Number of pages54
ID: 333538494