Wi-Fi-based Personnel Identity Recognition: Addressing Dataset Imbalance with C-DDPMs

Autor: Bian, Jichen, Tan, Chong, Tang, Peiyao, Zheng, Min
Rok vydání: 2024
Předmět:
Zdroj: IEEE Signal Processing Letters, 2024
Druh dokumentu: Working Paper
DOI: 10.1109/LSP.2024.3397160
Popis: Wireless sensing technologies become increasingly prevalent due to the ubiquitous nature of wireless signals and their inherent privacy-friendly characteristics. Device-free personnel identity recognition, a prevalent application in wireless sensing, is susceptibly challenged by imbalanced channel state information (CSI) datasets. This letter proposes a novel method for CSI dataset augmentation that employs Conditional Denoising Diffusion Probabilistic Models (C-DDPMs) to generate additional samples that address class imbalance issues. The augmentation markedly improves classification accuracies on our homemade dataset, elevating all classes to above 94%.
Databáze: arXiv