Poster: Privacy-Preserving Server-Driven Dynamic Spectrum Access System

Yanzhi Dou, K. Zeng, Yaling Yang
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引用次数: 2

Abstract

Dynamic spectrum access (DSA) technique has been widely accepted as a crucial solution to mitigate the potential spectrum scarcity problem. As a key form of DSA, government is proposing to release more federal spectrum for sharing with commercial wireless users. However, the flourish of federal-commercial sharing hinges upon how privacy issues are managed. In current DSA proposals, the sensitive operation parameters of both federal incumbent users (IUs) and commercial secondary users (SUs) need to be shared with the dynamic spectrum access system (SAS) to realize efficient spectrum allocation. Since SAS is not necessarily operated by a trusted third party, the current proposals dissatisfy the privacy requirement of both IUs and SUs. To address the privacy issues, this paper presents a privacy-preserving SAS design, which realizes the complex spectrum allocation decision process of DSA through secure computation over ciphertext based on homomorphic encryption, thus none of the IU or SU operation parameters are exposed to SAS.
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海报:隐私保护服务器驱动的动态频谱接入系统
动态频谱接入(DSA)技术作为缓解潜在频谱稀缺问题的关键解决方案已被广泛接受。作为DSA的一种关键形式,政府正在提议释放更多的联邦频谱,以便与商业无线用户共享。然而,联邦商业共享的繁荣取决于如何处理隐私问题。在现有的DSA方案中,联邦既有用户(IUs)和商业从用户(SUs)的敏感运行参数都需要与动态频谱接入系统(SAS)共享,以实现高效的频谱分配。由于SAS不一定由可信的第三方操作,因此目前的提案不满足u和u的隐私要求。为了解决隐私问题,本文提出了一种保护隐私的SAS设计,该设计通过基于同态加密的密文安全计算来实现DSA复杂的频谱分配决策过程,从而使IU和SU的操作参数不暴露给SAS。
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