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Physical-Layer Security for Cooperative Relay Networks

2016-04-20 Computers
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Release : 2016-04-20
Genre : Computers
Kind : eBook
Book Rating : 743/5 ( reviews)

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Book Synopsis Physical-Layer Security for Cooperative Relay Networks by : Yulong Zou

Download or read book Physical-Layer Security for Cooperative Relay Networks written by Yulong Zou. This book was released on 2016-04-20. Available in PDF, EPUB and Kindle. Book excerpt: This book presents physical-layer security as a promising paradigm for achieving the information-theoretic secrecy required for wireless networks. It explains how wireless networks are extremely vulnerable to eavesdropping attacks and discusses a range of security techniques including information-theoretic security, artificial noise aided security, security-oriented beamforming, and diversity assisted security approaches. It also provides an overview of the cooperative relaying methods for wireless networks such as orthogonal relaying, non-orthogonal relaying, and relay selection.Chapters explore the relay-selection designs for improving wireless secrecy against eavesdropping in time-varying fading environments and a joint relay and jammer selection for wireless physical-layer security, where a relay is used to assist the transmission from the source to destination and a friendly jammer is employed to transmit an artificial noise for confusing the eavesdropper. Additionally, the security-reliability tradeoff (SRT) is mathematically characterized for wireless communications and two main relay-selection schemes, the single-relay and multi-relay selection, are devised for the wireless SRT improvement. In the single-relay selection, only the single best relay is chosen for assisting the wireless transmission, while the multi-relay selection invokes multiple relays for simultaneously forwarding the source transmission to the destination.Physical-Layer Security for Cooperative Relay Networks is designed for researchers and professionals working with networking or wireless security. Advanced-level students interested in networks, wireless, or privacy will also find this book a useful resource.

Physical Layer Security in Wireless Communications

2016-04-19 Computers
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Release : 2016-04-19
Genre : Computers
Kind : eBook
Book Rating : 015/5 ( reviews)

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Book Synopsis Physical Layer Security in Wireless Communications by : Xiangyun Zhou

Download or read book Physical Layer Security in Wireless Communications written by Xiangyun Zhou. This book was released on 2016-04-19. Available in PDF, EPUB and Kindle. Book excerpt: Physical Layer Security in Wireless Communications supplies a systematic overview of the basic concepts, recent advancements, and open issues in providing communication security at the physical layer. It introduces the key concepts, design issues, and solutions to physical layer security in single-user and multi-user communication systems, as well as large-scale wireless networks. Presenting high-level discussions along with specific examples, and illustrations, this is an ideal reference for anyone that needs to obtain a macro-level understanding of physical layer security and its role in future wireless communication systems.

Physical Layer Security in Wireless Cooperative Networks

2017-08-31 Technology & Engineering
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Release : 2017-08-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 636/5 ( reviews)

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Book Synopsis Physical Layer Security in Wireless Cooperative Networks by : Li Wang

Download or read book Physical Layer Security in Wireless Cooperative Networks written by Li Wang. This book was released on 2017-08-31. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview for physical layer security in wireless cooperative networks, including fundamental concepts, typical solutions, and some recent achievements. It investigates the secrecy performance with respect to time reversal transmission and multi-antenna spatial modulation techniques. Both of which are proposed as effective physical layer processing schemes in wireless multipath channel environment. Resource allocation strategies to enhance secrecy performance in D2D communications are also discussed in this book. It contributes to formulating user social behaviors and utilizing social characteristics to improve the secrecy performance in wireless cooperative networks. This book not only analyzes the secrecy enhancement with certain techniques, but also pursues to find the relationships or tradeoffs among the secrecy performance, energy consumption, channel conditions, and other essential factors in wireless communications. This book targets researchers and professionals specializing in electronic engineering, computer science,wireless communications and networks. Advanced level students in electrical engineering and computer science will also find this book useful as a secondary text.

Cooperative Communication for Wireless Physical Layer Security

2013
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Release : 2013
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Kind : eBook
Book Rating : 177/5 ( reviews)

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Book Synopsis Cooperative Communication for Wireless Physical Layer Security by : Jing Huang

Download or read book Cooperative Communication for Wireless Physical Layer Security written by Jing Huang. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt: Cooperative communication in relay networks facilitates high spectral efficiency and large wireless transmission coverage. Despite the advances of improved cooperative diversity and flexible node deployment, the relay network has more transmission nodes exposed in wireless environment than conventional single-hop channels and thus the secure communication may be impeded by potential eavesdroppers. Unlike the traditional approach of cryptographic design in the application layer, in this thesis we investigate the security issues in relay networks from a physical layer perspective. We start with a two-hop multiple-input multiple-output (MIMO) relay network and propose cooperative beamforming and jamming strategies to maximize the secrecy rate. The corresponding power allocation is also optimized via geometric programming. Both cases with known and unknown eavesdropper's channel state information (ECSI) are considered. Next, we study a case where the relay is untrusted although it helps with forwarding message to the destination. The exact secrecy outage probability (SOP) is characterized with the impact of the number of antennas at the relay. Antenna selection, beamforming and node selection schemes are proposed to suppress the wiretapping ability of the relay. Then we consider using a buffer-aided relay that can dynamically control its receive and transmit phases. A link selection scheme that takes into account both the two-hop transmission efficiency and security constraints is proposed and shown to significantly improve the secrecy throughput. Finally, we study robust transmit design when the relay acts as a pure cooperative jammer. The ECSI is assumed to be partially known and norm-bounded. The transmit covariance matrices are optimized via semidefinite programming, based on maximizing the worst-case secrecy rate. Through this thesis, we show that by taking advantage of the features of relay networks, the security performance can be significantly improved in terms of secrecy rate and SOP.

Data Communication and Networks

2019-10-25 Technology & Engineering
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Release : 2019-10-25
Genre : Technology & Engineering
Kind : eBook
Book Rating : 327/5 ( reviews)

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Book Synopsis Data Communication and Networks by : Lakhmi C. Jain

Download or read book Data Communication and Networks written by Lakhmi C. Jain. This book was released on 2019-10-25. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers selected high-quality papers presented at the International Conference on Computing, Power and Communication Technologies 2019 (GUCON 2019), organized by Galgotias University, India, in September 2019. The content is divided into three sections – data mining and big data analysis, communication technologies, and cloud computing and computer networks. In-depth discussions of various issues within these broad areas provide an intriguing and insightful reference guide for researchers, engineers and students alike.

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