Robustness against Byzantine Failures in Distributed Spectrum Sensing

doi:10.1016/j.comcom.2012.07.014

CORC > 北京大学 > 信息科学技术学院

	Robustness against Byzantine Failures in Distributed Spectrum Sensing
	Chen, Ruiliang ; Park, Jung-Min Jerry ; Bian, Kaigui
刊名	computer communications
	2012
关键词	Cognitive Radio Networks Distributed Spectrum Sensing Byzantine Failure Spectrum Sensing Data Falsification Attacks Weighted Sequential Probability Ratio Test COGNITIVE RADIOS NETWORKS
DOI	10.1016/j.comcom.2012.07.014
英文摘要	Distributed Spectrum Sensing (DSS) enables a Cognitive Radio (CR) network to reliably detect licensed users and avoid causing interference to licensed communications. The data fusion technique is a key component of DSS. We discuss the Byzantine Failure problem in the context of data fusion, which may be caused by either malfunctioning sensing terminals or Spectrum Sensing Data Falsification (SSDF) attacks. In either case, incorrect spectrum sensing data is reported to a data collector which can lead to the distortion of data fusion outputs. We investigate various data fusion techniques, focusing on their robustness against Byzantine Failures. In contrast to existing data fusion techniques that use a fixed number of samples, we propose a new technique that uses a variable number of samples. The proposed technique, which we call Weighted Sequential Probability Ratio Test (WSPRT), introduces a reputation-based mechanism to the Sequential Probability Ratio Test (SPRT). We evaluate WSPRT by comparing it with a variety of data fusion techniques under various conditions. We also discuss practical issues that need to be considered when applying the fusion techniques to CR networks. Our simulation results indicate that WSPRT is the most robust against Byzantine Failures among the data fusion techniques that were considered. (c) 2012 Elsevier B.V. All rights reserved.; Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications; SCI(E); 1; ARTICLE; 17; 2115-2124; 35
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/230858]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Chen, Ruiliang,Park, Jung-Min Jerry,Bian, Kaigui. Robustness against Byzantine Failures in Distributed Spectrum Sensing[J]. computer communications,2012.
APA	Chen, Ruiliang,Park, Jung-Min Jerry,&Bian, Kaigui.(2012).Robustness against Byzantine Failures in Distributed Spectrum Sensing.computer communications.
MLA	Chen, Ruiliang,et al."Robustness against Byzantine Failures in Distributed Spectrum Sensing".computer communications (2012).