Geo-Indistinguishablility for Crowdsourced-Based Radio Environment Map Construction
Geo-Indistinguishablility for Crowdsourced-Based Radio Environment Map Construction
复制标题
基于众包的无线电环境地图构建的地理不可区分性
DOI：
10.1109/globecom42002.2020.9348142
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Gong, Yanmin
中科院分区：
文献类型：
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作者：
Amin, Shahira;Li, Liang;Guo, Yuanxiong;Pan, Miao;Gong, Yanmin
本文的目的是保护位置隐私的众包频谱感知代理使用地理不可侵犯性。我们考虑了数据库驱动的动态频谱接入，其中无线电环境地图为动态频谱接入管理提供频谱可用性信息。此外，我们假设基于众包的频谱感测，其中分配的移动的用户的池，称为基于众包的频谱感测代理，感测频谱和报告他们的实际位置和接收到的信号强度的频谱管理器，构建一个无线电环境地图。这公开了基于众包的频谱感测代理的位置信息，并且侵犯了它们的位置隐私。因此，基于众包的频谱感测代理可能不被鼓励参与频谱感测。为了解决位置泄露问题，本文采用了平面拉普拉斯机制，每个基于众包的频谱感知代理报告一个混淆位置，而不是其实际位置，从而实现了地理不可感知性。我们的模拟结果是基于真实世界的CRAWDAD数据集。我们的研究结果表明，与一个中等的隐私水平，位置隐私的众包频谱感知代理被保存，而引入的位置噪声的无线电环境地图的准确性的影响是微不足道的。
The aim of this paper is to preserve location privacy of crowdsourced-based spectrum sensing agents using geo-indistinguishability. We considered database-driven dynamic spectrum access, where a radio environment map provides spectrum availability information for dynamic spectrum access management. Moreover, we assumed crowdsourced-based spectrum sensing, where a pool of allocated mobile users, called crowdsourced-based spectrum sensing agents, sense the spectrum and report their actual location and the received signal strength to the spectrum manager that constructs a radio environment map. This discloses location information of crowdsourced-based spectrum sensing agents and violates their location privacy. Consequently, crowdsourced-based spectrum sensing agents could be discouraged to participate in spectrum sensing. In our paper, to solve the problem of location disclosure, we adopted planar Laplacian mechanism, where each crowdsourced-based spectrum sensing agent reports an obfuscated location instead of its actual location, which achieves geo-indistinguishability. Our simulation results were based on real-world CRAWDAD dataset. Our results showed that with a moderate privacy level, location privacy of crowdsourced-based spectrum sensing agents was preserved while the effect of introduced location noise on the accuracy of radio environment map was insignificant.
位置不确定性下无线电环境地图生成的地统计方法
DOI：
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发表时间：
2018
期刊：
影响因子：
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作者：
Ricardo Augusto;C. Panazio
通讯作者：
C. Panazio
CRAWDAD 数据集 cu/wimax (v.2012-06-01)
DOI：
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发表时间：
2012
期刊：
影响因子：
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作者：
M. Ton;Caleb Phillips
通讯作者：
Caleb Phillips