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Physical Layer Security in Wireless Communication Networks

Physical Layer Security in Wireless Communication Networks
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Author(s): Özge Cepheli (Istanbul Technical University, Turkey) and Güneş Karabulut Kurt (Istanbul Technical University, Turkey)
Copyright: 2014
Pages: 21
Source title: Security, Privacy, Trust, and Resource Management in Mobile and Wireless Communications
Source Author(s)/Editor(s): Danda B. Rawat (Georgia Southern University, USA), Bhed B. Bista (Iwate Prefectural University, Japan) and Gongjun Yan (University of Southern Indiana, USA)
DOI: 10.4018/978-1-4666-4691-9.ch004

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Abstract

Physical layer (PHY) security has become an emerging area of research recently. Wireless networks use unguided medium as communication channels, so gathering wireless data transmission is easier when compared to traditional cable systems. With the rise of new security challenges, many different solutions have been offered and are being developed. However, maintaining security in wireless networks still remains a challenge. Secure transmission techniques in these networks are discussed throughout this chapter. PHY security measures, the secrecy rate, the secrecy capacity, and the outage secrecy rate are introduced. Security needs of wireless networks are discussed and the related common attack types are described. Main countermeasures that are proposed to prevent these attacks are also presented with both practical and theoretical perspectives.

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