On the Prediction of Wi-Fi Performance through Deep Learning
This work addresses the problem of reliable Wi-Fi communications for industrial systems requiring low latency, but it is incremental as it compares existing deep learning methods on new data.
The paper tackled predicting Wi-Fi performance (Frame Delivery Ratio) using deep learning models (CNN and LSTM) on binary time sequences from real data, finding that CNN achieves lower inference latency with only a marginal accuracy loss compared to LSTM.
Ensuring reliable and predictable communications is one of the main goals in modern industrial systems that rely on Wi-Fi networks, especially in scenarios where continuity of operation and low latency are required. In these contexts, the ability to predict changes in wireless channel quality can enable adaptive strategies and significantly improve system robustness. This contribution focuses on the prediction of the Frame Delivery Ratio (FDR), a key metric that represents the percentage of successful transmissions, starting from time sequences of binary outcomes (success/failure) collected in a real scenario. The analysis focuses on two models of deep learning: a Convolutional Neural Network (CNN) and a Long Short-Term Memory network (LSTM), both selected for their ability to predict the outcome of time sequences. Models are compared in terms of prediction accuracy and computational complexity, with the aim of evaluating their applicability to systems with limited resources. Preliminary results show that both models are able to predict the evolution of the FDR with good accuracy, even from minimal information (a single binary sequence). In particular, CNN shows a significantly lower inference latency, with a marginal loss in accuracy compared to LSTM.