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Generative adversarial networks enhanced location privacy in 5G networks

Abstract

5G networks, as the up-to-date communication platforms, are experiencing fast booming. Meanwhile, increasing volumes of sensitive data, especially location information, are being generated and shared using 5G networks for various purposes ceaselessly. Location and trajectory information in the published data has always been and will keep courting risks and attacks by malicious adversaries. Therefore, there are still privacy leakage threats by simply sharing the original data, especially data with location information, due to the short cover range of 5G signal tower. To better address these issues, we proposed a generative adversarial networks (GAN) enhanced location privacy protection model to cloak the location and even trajectory information. We use posterior sampling to generate a subset of data, which is proved complying with differential privacy requirements from the end device side. After that, a data augmentation algorithm modified from classic GAN is devised to generate a series of privacy-preserving full-sized synthetic data from the central server side. With the synthetic data generated from a real-world dataset, we demonstrate the superiority of the proposed model in terms of location privacy protection, data utility, and prediction accuracy.

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Acknowledgements

This work was partly supported by JSPS KAKENHI (Grant No. JP19H04105).

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Correspondence to Shui Yu.

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Qu, Y., Zhang, J., Li, R. et al. Generative adversarial networks enhanced location privacy in 5G networks. Sci. China Inf. Sci. 63, 220303 (2020). https://doi.org/10.1007/s11432-019-2834-x

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  • DOI: https://doi.org/10.1007/s11432-019-2834-x

Keywords

  • 5G
  • privacy preservation
  • generative adversarial nets
  • differential privacy