PeDSS: Privacy Enhanced and Database-Driven Dynamic spectrum Sharing
PeDSS: Privacy Enhanced and Database-Driven Dynamic spectrum Sharing
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DOI：
10.1109/infocom.2019.8737630
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发表时间：
2019-04
期刊：
影响因子：
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通讯作者：
He Li;Yaling Yang;Yanzhi Dou;J. Park;K. Ren
中科院分区：
文献类型：
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作者：
He Li;Yaling Yang;Yanzhi Dou;J. Park;K. Ren
数据库驱动的动态频谱共享是解决频谱稀缺问题的最有前途的动态频谱接入(DSA)方案之一。在这种数据库驱动的DSA系统中，被称为频谱接入系统(SAS)的集中式频谱管理基础设施收集现任用户(IU)和次级用户(SU)的敏感操作数据，这使得隐私保护在该范例中至关重要。然而，现有的少数解决方案依赖于在线可信第三方，这需要额外的基础设施，并带来单点故障的风险。针对现有方案的不足，本文提出了一种隐私增强和数据库驱动的动态频谱共享框架(PeDSS)，该框架在数据库驱动的DSA系统中保护了IU和SU的隐私，不需要在线可信第三方。形式化地定义和分析了IU和SU的隐私，实验结果表明，PeDSS下的SA平均能够在0.51ms内处理一次频谱请求，比现有技术快3个数量级。
Database driven dynamic spectrum sharing is one of the most promising dynamic spectrum access (DSA) solution to address the spectrum scarcity issue. In such a database-driven DSA system, the centralized spectrum management infrastructure, called spectrum access system (SAS), collects sensitive operational data of both incumbent users (IUs) and secondary users (SUs), which makes privacy protection critical in this paradigm. However, the few existing solutions rely on online trusted third party, which requires extra infrastructure and brings the risk of single point failure. To address the shortcomings of existing solutions, we propose a privacy enhanced and database-driven dynamic spectrum sharing (PeDSS) framework in this paper, which preserves the privacy for both IUs and SUs in database-driven DSA systems without the need for online trusted third party. Privacy for both IUs and SUs are formally defined and analyzed, and experiment results show that SAS under PeDSS is able to handle a single spectrum request in 0.51 ms on average, which is three orders of magnitude faster than prior arts.