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Security in cognitive radio networks

Name: Security in cognitive radio networks
Creator: Sami Akin
Keywords: FOS: Computer and information sciences, Computer Science - Cryptography and Security, 13. Climate action, Computer Science - Information Theory, Information Theory (cs.IT), 0202 electrical engineering, electronic engineering, information engineering, 02 engineering and technology, Cryptography and Security (cs.CR)

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Conference object 01 Mar 2014Embargo end date: 01 Jan 2014Publisher:IEEEJournal:2014 48th Annual Conference on Information Sciences and Systems (CISS)Funded by:EC | UNIQUE

Authors: Sami Akin;

doi: 10.1109/ciss.2014.6814188 , 10.48550/arxiv.1402.1137

arXiv: http://arxiv.org/abs/1402.1137

Security in cognitive radio networks

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Abstract

In this paper, we investigate the information-theoretic security by modeling a cognitive radio wiretap channel under quality-of-service (QoS) constraints and interference power limitations inflicted on primary users (PUs). We initially define four different transmission scenarios regarding channel sensing results and their correctness. We provide effective secure transmission rates at which a secondary eavesdropper is refrained from listening to a secondary transmitter (ST). Then, we construct a channel state transition diagram that characterizes this channel model. We obtain the effective secure capacity which describes the maximum constant buffer arrival rate under given QoS constraints. We find out the optimal transmission power policies that maximize the effective secure capacity, and then, we propose an algorithm that, in general, converges quickly to these optimal policy values. Finally, we show the performance levels and gains obtained under different channel conditions and scenarios. And, we emphasize, in particular, the significant effect of hidden-terminal problem on information-theoretic security in cognitive radios.

Submitted to CISS 2014

Related Organizations

University of Hannover
Germany

Keywords

FOS: Computer and information sciences, Computer Science - Cryptography and Security, Computer Science - Information Theory, Information Theory (cs.IT), Cryptography and Security (cs.CR)

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