Generative adversarial networks enhanced location privacy in 5G networks

• 作 者: Youyang QU Jingwen ZHANG Ruidong LI Xiaoning ZHANG Xuemeng ZHAI Shui YU
• 机 构: School of Information Technology,Deakin University,Burwood VIC 3125,Australia;School of Computer Sci
• 出 处: 中国科学：信息科学（英文版）
• 发表日期: 2020年12期
• 关键词: 5G privacy preservation generative adversarial nets differential privacy

5G networks,as the up-to-date communication platforms,are experiencing fast booming.Mean-while,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 infor-mation.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.