An Improvement of Security Scheme for Radio Environment Map Under Massive Attacking
An Improvement of Security Scheme for Radio Environment Map Under Massive Attacking
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DOI：
10.1109/access.2022.3170478
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发表时间：
2022
期刊：
影响因子：
3.9
通讯作者：
Ying Gao;T. Fujii
中科院分区：
文献类型：
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作者：
Ying Gao;T. Fujii
在空间频谱共享中，无线电环境地图(REM)被广泛用于提高通信效率。这可以使用来自终端的报告来生成。然而，开放的特征环境总是会带来安全问题；例如，当环境中存在恶意终端并发生数据篡改攻击时，恶意行为会影响REM的准确性。在本研究中，我们对双层监控算法进行了改进，通过相似性比较和可持续监控来优化奖励惩罚函数。该算法可以从数据库中剔除恶意终端报告，提高准确率。此外，我们还提出了一种新的基于空间信息的插补算法，以解决从网格获得的信息不相等的问题。通过内插，数据库可以从每个网格中获得足够的数据集。此外，我们使用所提出的安全算法定义了一种最优攻击策略。在数据篡改攻击中，恶意终端的影响可能是最强的，这样可以更全面地检查性能。仿真结果表明，该方法能够消除恶意终端的影响，在大量恶意终端攻击的情况下，能够获得高精度的快速眼动检测。
Radio environment maps (REM) are widely used to enhance communication efficiency in spatial spectrum sharing. This can be generated using reports from the terminals. However, an open characteristic environment always leads to a security problem; for example, when malicious terminals exist in the environment and data falsification attacks occur, the accuracy of the REM is affected by the malicious action. In this study, we improve the double-layer monitor algorithm by optimizing the reward penalty function using a similarity comparison and sustainable monitor. The proposed algorithm can remove malicious terminal reports from the database to improve accuracy. Additionally, we propose a new algorithm involving interpolation based on spatial information to solve the problem of unequal information obtained from the meshes. By interpolation, a database can obtain sufficient datasets from each mesh. Furthermore, we defined an optimal attack strategy using the proposed security algorithm. The influence of malicious terminals can be the strongest among data falsification attacks; thus, we can check the performance more comprehensively. The simulation results indicate that the proposed method can eliminate the influence of malicious terminals and that a highly accurate REM can be obtained under massive malicious terminal attacks.