Matrix differential privacy protection technology in UAV communications
Online published: 2025-03-19
Copyright
Unmanned aerial vehicle (UAV) faces the risk of data leakage and malicious attacks when collecting and transmitting data. Differential privacy technology can provide privacy protection in the communication process. However, the traditional differential privacy mechanism has the problem of poor privacy protection and data utility loss when dealing with the high dimensional or complex data in UAV communications. To solve these problems, a novel matrix differential privacy protection method named matrix Gaussian mechanism (MGM) was proposed. MGM provided privacy protection in matrix data by introducing structured noise, while using matrix covariance structure to control the direction of noise addition to minimize the data utility loss. Compared with the traditional methods, MGM could adjust the noise distribution more flexibly, improve the efficiency of privacy protection, and maintain the structural characteristics of data in the multidimensional data space. Experimental results showed that the proposed method could effectively protect data privacy with improving the efficiency of UAV communications as well as the adaptability and scalability of model training.
YANG Jungang , KONG Hao . Matrix differential privacy protection technology in UAV communications[J]. Journal of Cybersecurity, 2025 , 3(1) : 42 -51 . DOI: 10.20172/j.issn.2097-3136.250104
表 1 垂直联邦学习中的差分隐私保护设置Table 1 Differential privacy settings in vertical federated learning |
| 参数 | 数据集 | ||
| MNIST | CIFAR10 | IMDB | |
| 模型 | LeNet | ResNet-18 | LSTM |
| 训练集大小 | 55 000 | 50 000 | 25 000 |
| 测试集大小 | 5 000 | 10 000 | 25 000 |
| 限幅值 | 0.01 | 0.05 | 0.30 |
| 批大小 | 64 | 16 | 256 |
| 轮次 | 25 | 50 | 10 |
| 本地轮次 | 3 | 3 | 2 |
| 梯度形状 | 120×400 | 4 608×512 | 20 002×128 |
表 2 MGM与基线方法之间的理论误差比较Table 2 Comparison of theoretical errors between MGM and baselines |
| 方法 | Gaussian | MVG | UDN | IDN |
表 3 不同机制的运行时间Table 3 Runtime of different mechanisms |
| 方法 | 运行时间(s) |
| Gaussian | 0.001 64 |
| MVG | 0.511 46 |
| MM | 0.823 23 |
| UDN | 0.002 48 |
| IDN | 0.002 24 |
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