Challenges and New Directions in Securing Spectrum Access Systems
Challenges and New Directions in Securing Spectrum Access Systems
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DOI：
10.1109/jiot.2021.3064583
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发表时间：
2021-04
影响因子：
10.6
通讯作者：
Shanghao Shi;Yang Xiao;Wenjing Lou;Chonggang Wang;Xu Li;Y. T. Hou;Jeffrey H. Reed
中科院分区：
文献类型：
--
作者：
Shanghao Shi;Yang Xiao;Wenjing Lou;Chonggang Wang;Xu Li;Y. T. Hou;Jeffrey H. Reed
频谱接入系统（SAS）正在部署作为新兴频谱共享模式的关键组成部分，以解决美国无线行业面临的频谱危机。确保该系统的安全性和隐私性免受潜在攻击是一项至关重要的任务。在本文中，我们首先介绍了SAS系统，描述了它的三层接入模型，它的功能架构，和频谱管理协议。然后，我们提供了一个SAS容易受到的各种安全和隐私攻击的全面分析，并讨论他们的对策。我们确定了关键的挑战，形式化的威胁模型，并组织SAS安全性的讨论分为四个类别：1）SAS服务器的安全性和隐私; 2）公民宽带无线电服务设备的安全性; 3）环境感知能力的安全性;和4）通信协议的安全性。最后，我们提出了未来的研究方向，频谱管理安全。
The spectrum access system (SAS) is being deployed as a key component of the emerging spectrum sharing paradigm to address the spectrum crunch facing the U.S. wireless industry. Ensuring security and privacy of this system against potential attacks is a task of paramount importance. In this article, we first introduce the SAS system, describing its three-tier access model, its functional architecture, and the spectrum management protocol. We then provide a comprehensive analysis of a variety of security and privacy attacks that an SAS is vulnerable to, and discuss their countermeasures. We identify key challenges, formalize threat models, and organize the discussion of SAS security into four categories: 1) SAS server security and privacy; 2) citizens broadband radio service device security; 3) security of environment sensing capability; and 4) communication protocol security. Finally, we suggest future research directions for spectrum management security.