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2016 | Buch

Wireless Physical Layer Security Kapitel lesen Erstes Kapitel lesen

Physical Layer Security in Random Cellular Networks

verfasst von: Hui-Ming Wang, Tong-Xing Zheng

Verlag: Springer Singapore

Buchreihe : SpringerBriefs in Computer Science

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik" , Springer Professional "Wirtschaft"

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SUCHEN

Über dieses Buch

This book investigates key security issues in connection with the physical layer for random wireless cellular networks. It first introduces readers to the fundamentals of information theoretic security in the physical layer. By examining recently introduced security techniques for wireless point-to-point communications, the book proposes new solutions to physical layer security based on stochastic geometric frameworks for random cellular networks. It subsequently elaborates on physical-layer security in multi-tier heterogeneous networks. With the new modeled settings, the authors also verify the security performance with the impact of the full-duplex transceivers. The specific model design presented here offers a valuable point of reference for readers in related areas. In addition, the book highlights promising topics and proposes potential future research directions.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Wireless Physical Layer Security
Abstract
In this chapter, the context and the fundamental concepts of physical layer security are well introduced. It starts at Shannon’s definition of information-theoretic security, Wyner’s wiretap model, and secrecy conditions. Then the secrecy metrics are described, including secrecy capacity/rate, ergodic secrecy capacity/rate, secrecy outage, and secrecy throughput. At the end of this chapter, we provide a brief survey on the recent research advances on wireless physical layer security.
Hui-Ming Wang, Tong-Xing Zheng
Chapter 2. Random Cellular Networks and Stochastic Geometry
Abstract
In this chapter, we discuss the physical layer security in stochastic geometric networks. We first present the randomness of cellular networks deployment, and summarize the challenges to solve the physical layer security issue. We then introduce some primary knowledge of stochastic geometry theory, especially some useful properties of Poisson point process, which will be extensively used in the following chapters. It is concluded that various random wireless networks can be modeled and analyzed using the framework of stochastic geometry. Moreover, we introduce the network security performance metrics to evaluate the physical layer security. Finally, we provide a brief survey of recent researches on physical layer security in wireless networks, and introduce three open problems in this field which we are going to deal with in the following chapters.
Hui-Ming Wang, Tong-Xing Zheng
Chapter 3. Physical Layer Security in Cellular Networks Under TDMA
Abstract
In this chapter, we discuss the physical layer secrecy transmission in a downlink cellular network under TDMA, coexisting with randomly located eavesdroppers. We adopt and investigate a secure multi-antenna transmission scheme in which artificial noise is injected into the null space of the legitimate channel to confuse eavesdroppers, and provide a comprehensive secrecy performance analysis and system design/optimization under the stochastic geometry framework. We first analyze the optimal power allocation to minimize the SOP. Subject to an SOP constraint, we then propose a dynamic parameter transmission scheme (DPTS) and a static parameter transmission scheme (SPTS) to maximize secrecy throughput. Our results give new insight into secure transmission designs in a random cellular network. Numerical results are demonstrated to validate our theoretical analysis.
Hui-Ming Wang, Tong-Xing Zheng
Chapter 4. Physical Layer Security in Heterogeneous Cellular Network
Abstract
The heterogeneous cellular network is believed to be a promising deployment of cellular networks in 5G. This chapter comprehensively studies physical layer security in a multitier HCN where BSs, authorized users and eavesdroppers are all randomly located. We first propose a truncated average received signal power-based secrecy mobile association policy. Under this policy, we investigate and provide tractable expressions for the connection probability and secrecy probability of a randomly located user. We further evaluate the network-wide secrecy throughput and the minimum secrecy throughput per user under both connection and secrecy probability constraints. We prove that the proposed mobile association policy significantly enhances the secrecy throughput performance of the HCN.
Hui-Ming Wang, Tong-Xing Zheng
Chapter 5. Physical Layer Security in Heterogeneous Ad hoc Networks with Full-Duplex Receivers
Abstract
In this chapter, we study the benefits of full-duplex (FD) receiver jamming. It enhances the physical layer security of a two-tier heterogeneous wireless ad hoc network, in which each tier is deployed with a large number of pairs of a single-antenna transmitter and a multiple-antenna receiver. The receivers in the underlying tier work in the half-duplex (HD) mode and those in the overlaid tier work in the FD mode. We provide a comprehensive performance analysis and network design under a stochastic geometry framework. Specifically, we consider the scenarios where each FD receiver uses single- and multiple-antenna jamming, and analyze the connection probability and the secrecy outage probability of a typical FD receiver with accurate expressions and more tractable approximations provided. We further determine the optimal density of the FD tier that maximizes network-wide secrecy throughput subject to constraints including the given dual probabilities and the network-wide throughput of the HD tier. Numerical results are demonstrated to verify our theoretical findings, and show that network-wide secrecy throughput is significantly improved by properly deploying the FD tier.
Hui-Ming Wang, Tong-Xing Zheng
Chapter 6. Conclusions and Future Research Directions
Abstract
This chapter concludes the whole book and also provides some future research directions.
Hui-Ming Wang, Tong-Xing Zheng
Metadaten
Titel
Physical Layer Security in Random Cellular Networks
verfasst von
Hui-Ming Wang
Tong-Xing Zheng
Copyright-Jahr
2016
Verlag
Springer Singapore
Electronic ISBN
978-981-10-1575-5
Print ISBN
978-981-10-1574-8
DOI
https://doi.org/10.1007/978-981-10-1575-5