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CPSS信息物理社会融合系统前沿研讨会
2017-01-11 09:50  

报告1:基于群智感知的动态频谱接入方法研究

报告人:李明博士美国亚利桑那大学副教授

时间地点:201663日(周五)上午10:00-11:00点,105会议室

主持人:郭斌

摘要

动态频谱接入(DSA)是近年来提出的新的频谱接入方式,它利用频谱空洞来实现频谱共享,从而缓解频谱短缺问题,提高了频谱利用率。通过 DSA,用户能够动态地搜索空闲频谱波段,暂时使用他们来进行无线通信。它包括机会主义频谱接入,频谱拍卖或交易等。尽管DSA带来了许多好处(如更高的频谱利用效率),但由于开放的无线接入环境,各种恶意的频谱利用或者攻击也更加成为可能。本报告将介绍我们在DSA中基于群智感知的频谱接入规则保障框架的研究。将探讨下列问题:如何最优化的利用有限的设备和资源来检测恶意的频谱接入行为?如何设计激励机制来促使移动用户参与群智感知频谱检测?如何防止搭便车和造假?最后将讨论一些未来的研究方向。

个人简介

李明博士现为美国亚利桑那大学电子与计算机工程系副教授,之前为犹他州立大学助理教授。2011年博士毕业于美国伍斯特理工学院。主要研究方向包括无线网络、大数据安全与隐私保护、信息物理融合系统等。曾获得美国国家科学基金职业成就奖与美国海军研究局青年科学家奖等。担任多个顶级会议如INFOCOMCNS等的程序委员或主席。在国际权威期刊和会议包括IEEE TPDSJSACTWCINFOCOM等上面发表论文60余篇。

Abstract:

The radio spectrum is becoming an increasingly valuable natural resource nowadays, while it has been shown that much of the spectrum is underutilized in existing licensed bands. To enhance spectrum utilization, dynamic spectrum access (DSA) has been envisioned as a set of promising new spectrum management paradigms, such as spectrum trading/auction and opportunistic spectrum access. While DSA and programmable cognitive radios enable a much higher flexibility of spectrum access, due to the openness of wireless medium, it is also susceptible to various forms of misuse or abuse. Therefore, enforcing spectrum access rules or etiquettes is crucial to ensuring the ultimate success of the DSA paradigm.In this talk, I will present a crowdsourcing-based framework for etiquette and rule enforcing in dynamic spectrum sharing environments. The main idea is to engage community users (radios) to detect misuse, and identify and punish unruly devices. In the first part, given a limited number of monitoring devices, we design an optimal adversarial spectrum usage monitoring algorithm for multi-channel cognitive radio networks with unknown statistics. In addition, we design several mechanisms to incentivize mobile devices to participate in crowdsourced spectrum monitoring, and to prevent free-riding and false-reporting.  Finally, I will discuss some future research challenges in this area.

Bio

Ming Li is an Associate Professor in the Department of Electrical and Computer Engineering (ECE) of University of Arizona. He was an Assistant Professor in the Computer Science Department at Utah State University from 2011 to 2015. He received his Ph.D. in ECE from Worcester Polytechnic Institute in 2011. His main research interests include wireless networking and cyber security, with current emphases on cross-layer optimization with MIMO and smart antennas, wireless and spectrum security, privacy-preserving big data analytics, and cyber-physical system security. He received the NSF Early Faculty Development (CAREER) Award in 2014, and the ONR Young Investigator Program (YIP) Award in 2016. He has won a distinguished paper award from ACM ASIACCS 2013, and CCC blue sky ideas award for best vision papers at ACM SIGSPATIAL 2015. He serves on the TPC of several premier conferences including IEEE INFOCOM, CNS, Globecom, ICC, ACM ASIACCS, and WiSec. He is a member of both IEEE and ACM.


报告2:智慧城市中的信息物理安全挑战

报告人:David Yau博士,新加坡先进数字科学中心杰出科学家

时间地点:201663日(周五)上午11:00-12:00点,105会议室

主持人:杨刚

 

Title: Cyber-Physical Security in Future Cities

摘要

为了适应未来城市在规模、生活品质以及可持续发展等方面不断增长的需求,数字控制与通信技术越来越广泛而深入地用于电网、供水系统等城市基础设施的后现代化过程。这些系统智能化程度的不断提升,一方面为其带来了理想的性能,但另一方面也使其变得愈加复杂,需要我们更加严肃地研究它们所面临的保险性(Safety)和安全性(Security)问题。本报告将在回顾总结CPS(信息物理融合系统)脆弱性分析相关研究的基础上,给出一种面向智能电网高性能操作监控的非完全可信设计方法,确保在系统可能漂移到非安全状态时将其退化到一种安全的操作模式。

个人简介

David Yau博士在香港中文大学获得计算机科学学士学位,在德克萨斯大学奥斯汀分校获得计算机科学硕士和博士学位。David Yau博士自2013年起任新加坡科技设计大学(SUTD)信息系统技术与设计的教授。2010年起,作为新加坡高级数字科学中心的杰出科学家,领导了信息物理安全研究计划。DavidYau现还担任中国浙江大学求是学院首席教授。在去新加坡工作之前,DavidYau博士是普渡大学计算机系的副教授。

David Yau主要研究方向包括网络协议的设计与实现、CPS安全性和隐私性、服务质量、网络激励、无线传感网络。曾获得美国国家科学基金职业奖。在2010年的IEEE的多传感器融合和集成(MFI)国际会议上荣获最佳论文奖。论文发表在 2008 IEEE Int'l Conf. 移动自组织和传感系统 (MASS)2013 IEEE Int'l Conf. 普适计算与通信(PerCom)2013 IEEE Int'l Conf. 信息物理系统,网络和应用(CPSNA),入围2013ACM BuildSys最佳论文奖。

Abstract: Digital control and communication are being used to modernize urban infrastructures, such as electrical grids and water systems, to meet the increasing demands of future cities for size, performance, and sustainability. While the added intelligence provides desirable performance features, it also adds to the system's complexity, which raises equally critical concerns for safety and security. In this talk, I will overview research that analyzes cyber-physical system (CPS)vulnerabilities such as real-time consumer pricing in emerging smart-grid demand response. I will also propose a design methodology to monitor the (not fully trustworthy) high performance operation of a smart grid, but assure its fallback to a simple and safe operation mode when the system drifts too close to unsafety.

Bio: David Yau received the B.Sc. (first class honors) from the Chinese University of Hong Kong, and M.S. and Ph.D. from the University of Texas at Austin, all in computer science. He has been Professor of Information Systems Technology and Design at SUTD since 2013. Since 2010, he has been Distinguished Scientist at the Advanced Digital Sciences Center, Singapore, where he leads the Cyber-Physical Securityresearch program. Prior to Singapore, he was Associate Professor of Computer Science at Purdue University (West Lafayette), USA. He serves also as Qiushi Chaired Professor at Zhejiang University, China.

David's research interests are in network protocol design and implementation, CPS security and privacy, quality of service, network incentives, and wireless and sensor networks. He received a CAREER award from the U.S. National Science Foundation. He won Best Paper award from the 2010 IEEE International Conference on Multi-sensor Fusion and Integration (MFI). His papers in2008 IEEE Int'l Conf. Mobile Ad-hoc and Sensor Systems (MASS), 2013 IEEE Int'l Conf. Pervasive Computing and Communications (PerCom), 2013 IEEE Int'l Conf. Cyber-Physical Systems, Networks, and Applications (CPSNA), and 2013 ACM BuildSys were Best Paper finalists.

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