CIF: Small: Foundations for Intrinsically Secure Networks: the Role of Network Interference

CIF：小型：本质安全网络的基础：网络干扰的作用

• 批准号: 1116501
• 负责人: Moe Win
• 金额: $ 48.31万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1116501&HistoricalAwards=false
• 关键词: CIF; Small; Foundations; Intrinsically; Secure

The ability to transfer information securely, to guarantee privacy, and to authenticate users in wireless networks forms the basis for confidentiality and economic advantage in today's information society. Contemporary wireless security systems evolved from schemes developed for traditional wireline applications, ignoring the special features of radio propagation channels. Meanwhile, the secrecy of wireless networks can be strengthened by exploiting the physical properties of these radio channels. Current research activities in this direction have largely ignored radio interference that can affect the secrecy of communication in a fundamental way. Therefore, it is crucial to characterize the various effects of interference (conventionally considered deleterious for communications) on network secrecy, as well as to develop techniques that exploit intrinsic properties of interference and radio channels for improving network secrecy.This research establishes foundations for the intrinsically secure exchange of information within wireless communities formed by spatially distributed legitimate users, interferers, and eavesdroppers. Principles and concepts from multiple disciplines such as communication theory, information theory, statistical inference, probability theory, stochastic geometry, and graph theory are employed to characterize the role of interference on network secrecy. In particular, this research (1) establishes a framework to determine the secrecy rate in large-scale wireless networks; (2) determines the properties of the iSI-graph, a random geometric graph that characterizes intrinsic secrecy in the presence of interference; (3) analyzes network secrecy in the presence of colluding eavesdroppers; and (4) evaluates the performance of secrecy enhancing techniques, including deliberate interference generation and sectorized transmission. This research provides a deeper understanding of the advantages and disadvantages of interference on network secrecy, paving the way to a more secure and safer information society.

在无线网络中安全地传输信息、保证隐私和认证用户的能力构成了当今信息社会中保密性和经济优势的基础。现代无线安全系统是从传统有线应用的方案发展而来的，忽略了无线电传播信道的特殊特性。同时，可以通过利用这些无线电信道的物理特性来加强无线网络的保密性。目前在这方面的研究活动在很大程度上忽略了无线电干扰，这可能会影响通信的保密性。因此，表征干扰的各种影响至关重要（传统上认为有害的通信）对网络保密性，以及开发技术，利用干扰和无线电信道的固有属性，以提高网络secrety.This研究建立的基础，本质上安全的信息交换的无线社区内形成的空间分布的合法用户，窃听者和窃听者。从多个学科，如通信理论，信息论，统计推断，概率论，随机几何和图论的原则和概念被用来表征网络保密的干扰的作用。具体而言，本研究（1）建立了一个确定大规模无线网络中保密率的框架;（2）确定了iSI-图的性质，iSI-图是一个随机几何图，它描述了存在干扰时的内在保密性;（3）分析了存在合谋窃听者时的网络保密性;以及（4）评估保密增强技术的性能，包括故意干扰生成和扇区化传输。这项研究提供了一个更深入的了解干扰对网络保密的利弊，铺平了道路，一个更安全，更安全的信息社会。