The Experts below are selected from a list of 9426 Experts worldwide ranked by ideXlab platform
Walid Saad - One of the best experts on this subject based on the ideXlab platform.
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WIRELESS Physical Layer Security: PART 1
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments , devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security. This Feature Topic is composed of two parts; the second part is expected to appear in the December issue of this magazine. Part 1 begins with an opening editorial by Trappe that exposes the current and future potential of wireless Physical Layer Security. Then, Kapetanovic et al. present a novel application of Physical Layer Security: massive multiple-input multiple-output (MIMO) systems. In this article, the authors focus on the robustness of massive MIMO against eavesdropping while also outlining other important related challenges. The next article by Win et al. also focuses on secrecy with a particular emphasis on the role of interference. In particular, it discusses how one can engineer interference to ensure confidentiality. Next, the work by Zeng tackles the problem of using the Physical Layer for key generation. Apart from the passive eavesdropping attack commonly considered in the literature, the author also discusses three types of active attacks and proposes a new key generation scheme to defend against them. The next article by Kailkhura et al. describes the Security of a distributed inference framework comprising a group of spatially distributed nodes that acquire observations about a phenomenon of interest and transmit computed summary statistics to a fusion center. The authors propose efficient schemes to mitigate the impact of eavesdropping on distributed inference, and survey the currently available approaches along with avenues for future research. This first issue concludes with an article by Yu et al. that exposes the importance of Physical Layer features as a means to fingerprint and authenticate wireless devices.
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Wireless Physical Layer Security: Part 1 [Guest Editorial]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Wireless Physical Layer Security [{Guest} {Editorial}]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptographic means. In emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by this paradigm shift, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fi ngerprinting techniques that exploit Physical Layer features for device identifi cation. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together tutorial-style and survey articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Guest Editorial: Signal Processing for Wireless Physical Layer Security}
IEEE Journal on Selected Areas in Communications, 2013Co-Authors: Lifeng Lai, Vincent Harold Poor, Walid Saad, Lee A. SwindlehurstAbstract:The main goal of this special issue is to gather state-of-the art-contributions that address such challenges as they pertain to the design, analysis, and optimization of Physical Layer Security in next-generation networks.
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Physical Layer Security: Coalitional Games for Distributed Cooperation
International Symposium on Modeling and Optimization in Mobile Ad Hoc and Wireless Networks WiOpt, 2009Co-Authors: Walid Saad, Tamer Başar, Merouane Debbah, Zhu Han, Are HjørungnesAbstract:Cooperation between wireless network nodes is a promising technique for improving the Physical Layer Security of wireless transmission, in terms of secrecy capacity, in the presence of multiple eavesdroppers. While existing Physical Layer Security literature answered the question "what are the link-level secrecy capacity gains from cooperation?", this paper attempts to answer the question of "how to achieve those gains in a practical decentralized wireless network and in the presence of a secrecy capacity cost for information exchange?". For this purpose, we model the Physical Layer Security cooperation problem as a coalitional game with non-transferable utility and propose a distributed algorithm for coalition formation. Through the proposed algorithm, the wireless users can autonomously cooperate and self-organize into disjoint independent coalitions, while maximizing their secrecy capacity taking into account the Security costs during information exchange. We analyze the resulting coalitional structures, discuss their properties, and study how the users can self-adapt the network topology to environmental changes such as mobility. Simulation results show that the proposed algorithm allows the users to cooperate and self-organize while improving the average secrecy capacity per user up to 25.32% relative to the non-cooperative case.
H. Vincent Poor - One of the best experts on this subject based on the ideXlab platform.
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WIRELESS Physical Layer Security: PART 1
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments , devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security. This Feature Topic is composed of two parts; the second part is expected to appear in the December issue of this magazine. Part 1 begins with an opening editorial by Trappe that exposes the current and future potential of wireless Physical Layer Security. Then, Kapetanovic et al. present a novel application of Physical Layer Security: massive multiple-input multiple-output (MIMO) systems. In this article, the authors focus on the robustness of massive MIMO against eavesdropping while also outlining other important related challenges. The next article by Win et al. also focuses on secrecy with a particular emphasis on the role of interference. In particular, it discusses how one can engineer interference to ensure confidentiality. Next, the work by Zeng tackles the problem of using the Physical Layer for key generation. Apart from the passive eavesdropping attack commonly considered in the literature, the author also discusses three types of active attacks and proposes a new key generation scheme to defend against them. The next article by Kailkhura et al. describes the Security of a distributed inference framework comprising a group of spatially distributed nodes that acquire observations about a phenomenon of interest and transmit computed summary statistics to a fusion center. The authors propose efficient schemes to mitigate the impact of eavesdropping on distributed inference, and survey the currently available approaches along with avenues for future research. This first issue concludes with an article by Yu et al. that exposes the importance of Physical Layer features as a means to fingerprint and authenticate wireless devices.
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Wireless Physical Layer Security: Part 1 [Guest Editorial]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Wireless Physical Layer Security [{Guest} {Editorial}]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptographic means. In emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by this paradigm shift, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fi ngerprinting techniques that exploit Physical Layer features for device identifi cation. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together tutorial-style and survey articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
Merouane Debbah - One of the best experts on this subject based on the ideXlab platform.
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WIRELESS Physical Layer Security: PART 1
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments , devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security. This Feature Topic is composed of two parts; the second part is expected to appear in the December issue of this magazine. Part 1 begins with an opening editorial by Trappe that exposes the current and future potential of wireless Physical Layer Security. Then, Kapetanovic et al. present a novel application of Physical Layer Security: massive multiple-input multiple-output (MIMO) systems. In this article, the authors focus on the robustness of massive MIMO against eavesdropping while also outlining other important related challenges. The next article by Win et al. also focuses on secrecy with a particular emphasis on the role of interference. In particular, it discusses how one can engineer interference to ensure confidentiality. Next, the work by Zeng tackles the problem of using the Physical Layer for key generation. Apart from the passive eavesdropping attack commonly considered in the literature, the author also discusses three types of active attacks and proposes a new key generation scheme to defend against them. The next article by Kailkhura et al. describes the Security of a distributed inference framework comprising a group of spatially distributed nodes that acquire observations about a phenomenon of interest and transmit computed summary statistics to a fusion center. The authors propose efficient schemes to mitigate the impact of eavesdropping on distributed inference, and survey the currently available approaches along with avenues for future research. This first issue concludes with an article by Yu et al. that exposes the importance of Physical Layer features as a means to fingerprint and authenticate wireless devices.
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Wireless Physical Layer Security: Part 1 [Guest Editorial]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Wireless Physical Layer Security [{Guest} {Editorial}]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptographic means. In emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by this paradigm shift, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fi ngerprinting techniques that exploit Physical Layer features for device identifi cation. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together tutorial-style and survey articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Physical Layer Security: Coalitional Games for Distributed Cooperation
International Symposium on Modeling and Optimization in Mobile Ad Hoc and Wireless Networks WiOpt, 2009Co-Authors: Walid Saad, Tamer Başar, Merouane Debbah, Zhu Han, Are HjørungnesAbstract:Cooperation between wireless network nodes is a promising technique for improving the Physical Layer Security of wireless transmission, in terms of secrecy capacity, in the presence of multiple eavesdroppers. While existing Physical Layer Security literature answered the question "what are the link-level secrecy capacity gains from cooperation?", this paper attempts to answer the question of "how to achieve those gains in a practical decentralized wireless network and in the presence of a secrecy capacity cost for information exchange?". For this purpose, we model the Physical Layer Security cooperation problem as a coalitional game with non-transferable utility and propose a distributed algorithm for coalition formation. Through the proposed algorithm, the wireless users can autonomously cooperate and self-organize into disjoint independent coalitions, while maximizing their secrecy capacity taking into account the Security costs during information exchange. We analyze the resulting coalitional structures, discuss their properties, and study how the users can self-adapt the network topology to environmental changes such as mobility. Simulation results show that the proposed algorithm allows the users to cooperate and self-organize while improving the average secrecy capacity per user up to 25.32% relative to the non-cooperative case.
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WiOpt - Physical Layer Security: Coalitional games for distributed cooperation
2009 7th International Symposium on Modeling and Optimization in Mobile Ad Hoc and Wireless Networks, 2009Co-Authors: Walid Saad, Tamer Başar, Merouane Debbah, Zhu Han, Are HjørungnesAbstract:Cooperation between wireless network nodes is a promising technique for improving the Physical Layer Security of wireless transmission, in terms of secrecy capacity, in the presence of multiple eavesdroppers. While existing Physical Layer Security literature answered the question “what are the link-level secrecy capacity gains from cooperation?”, this paper attempts to answer the question of “how to achieve those gains in a practical decentralized wireless network and in the presence of a secrecy capacity cost for information exchange?”. For this purpose, we model the Physical Layer Security cooperation problem as a coalitional game with non-transferable utility and propose a distributed algorithm for coalition formation. Through the proposed algorithm, the wireless users can autonomously cooperate and self-organize into disjoint independent coalitions, while maximizing their secrecy capacity taking into account the Security costs during information exchange. We analyze the resulting coalitional structures, discuss their properties, and study how the users can self-adapt the network topology to environmental changes such as mobility. Simulation results show that the proposed algorithm allows the users to cooperate and self-organize while improving the average secrecy capacity per user up to 25.32% relative to the non-cooperative case.
Kai-kit Wong - One of the best experts on this subject based on the ideXlab platform.
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Guest Editorial Physical Layer Security for 5G Wireless Networks, Part II
IEEE Journal on Selected Areas in Communications, 2018Co-Authors: Ashish Khisti, Chengshan Xiao, Kai-kit Wong, Giuseppe Caire, Xiqi GaoAbstract:The unprecedented growth in the number of mobile data and connected machines ever-fast approaches limits of fourth generation technologies to address this enormous data demand. Therefore, the development of the fifth generation (5G) wireless communication technologies is a priority issue currently. The evolution towards 5G wireless communications will be a cornerstone for realizing the future human-centric and connected machine-centric networks, which achieve near-instantaneous, zero distance connectivity for people and connected machines. On the other hand, wireless networks have been widely used in civilian and military applications and become an indispensable part of our daily life. People rely heavily on wireless networks for transmission of important/private information, such as credit card information, energy pricing, e-health data, command, and control messages. Therefore, Security is a critical issue for future 5G wireless networks. Physical Layer Security techniques can be used to either perform secure data transmission directly or generate the distribution of cryptography keys for conventional cryptography techniques in the 5G networks. With careful management and implementation, Physical Layer Security can be used as an additional level of protection on top of the existing Security schemes. As such, they will formulate a well-integrated Security solution together that efficiently safeguards the confidential and privacy communication data in 5G wireless networks. The main goal of this IEEE JSAC Special Issue on “Physical Layer Security for 5G Wireless Networks” is to bring together leading researchers in both academia and industry from diversified backgrounds to advance the theory and practice of Physical Layer Security for 5G wireless networks.
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a survey of Physical Layer Security techniques for 5g wireless networks and challenges ahead
IEEE Journal on Selected Areas in Communications, 2018Co-Authors: Yongpeng Wu, Chengshan Xiao, Ashish Khisti, Giuseppe Caire, Kai-kit WongAbstract:Physical Layer Security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind Physical Layer Security is to utilize the intrinsic randomness of the transmission channel to guarantee the Security in Physical Layer. The evolution toward 5G wireless communications poses new challenges for Physical Layer Security research. This paper provides a latest survey of the Physical Layer Security research on various promising 5G technologies, including Physical Layer Security coding, massive multiple-input multiple-output, millimeter wave communications, heterogeneous networks, non-orthogonal multiple access, full duplex technology, and so on. Technical challenges which remain unresolved at the time of writing are summarized and the future trends of Physical Layer Security in 5G and beyond are discussed.
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Covert Communications Versus Physical Layer Security.
arXiv: Cryptography and Security, 2018Co-Authors: Moslem Forouzesh, Paeiz Azmi, Nader Mokari, Kai-kit WongAbstract:This letter studies and compares the Physical-Layer Security approach and the covert communication approach for a wiretap channel with a transmitter, an intended receiver and an eavesdropper. In order to make the comparison, we investigate the power allocation problems for maximizing the secrecy/covert rate subject to the transmit power constraint. Simulation results illustrate that if the eavesdropper is not noisy or it is near to the transmitter, covert communication is more preferable.
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A Survey of Physical Layer Security Techniques for 5G Wireless Networks and Challenges Ahead
IEEE Journal on Selected Areas in Communications, 2018Co-Authors: Yongpeng Wu, Chengshan Xiao, Kai-kit Wong, Ashish Khisti, Giuseppe Caire, Xiqi GaoAbstract:Physical Layer Security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind Physical Layer Security is to utilize the intrinsic randomness of the transmission channel to guarantee the Security in Physical Layer. The evolution towards 5G wireless communications poses new challenges for Physical Layer Security research. This paper provides a latest survey of the Physical Layer Security research on various promising 5G technologies, including Physical Layer Security coding, massive multiple-input multiple-output, millimeter wave communications, heterogeneous networks, non-orthogonal multiple access, full duplex technology, etc. Technical challenges which remain unresolved at the time of writing are summarized and the future trends of Physical Layer Security in 5G and beyond are discussed.
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WCSP - Safeguarding massive MIMO aided hetnets using Physical Layer Security
2015 International Conference on Wireless Communications & Signal Processing (WCSP), 2015Co-Authors: Yansha Deng, Kai-kit Wong, Maged Elkashlan, Arumugam Nallanathan, Lifeng Wang, Sangarapillai LambotharanAbstract:This paper exploits the potential of Physical Layer Security in massive multiple-input multiple-output (MIMO) aided two-tier heterogeneous networks (HetNets). We focus on the downlink secure transmission in the presence of multiple eavesdroppers. We first address the impact of massive MIMO on the maximum receive power based user association. We then derive the tractable upper bound expressions for the secrecy outage probability of a HetNets user. We show that the implementation of massive MIMO significantly improves the secrecy performance, which indicates that Physical Layer Security could be a promising solution for safeguarding massive MIMO HetNets. Furthermore, we show that the secrecy outage probability of HetNets user first degrades and then improves with increasing the density of PBSs.
Xiangyun Zhou - One of the best experts on this subject based on the ideXlab platform.
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Secrecy metrics for Physical Layer Security over fading channels
Trusted Communications with Physical Layer Security for 5G and Beyond, 2017Co-Authors: Biao He, Xiangyun Zhou, A. Lee SwindlehurstAbstract:Physical Layer Security over fading channels has drawn a considerable amount of attention in the literature. How to measure the secrecy performance is a fundamental but important issue for the study of wireless Physical Layer Security. This chapter gives a comprehensive overview of the classical secrecy metrics as well as several new secrecy metrics for Physical Layer Security over fading channels, which enables one to appropriately design secure communication systems with different views on how secrecy is measured.
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WIRELESS Physical Layer Security: PART 1
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments , devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security. This Feature Topic is composed of two parts; the second part is expected to appear in the December issue of this magazine. Part 1 begins with an opening editorial by Trappe that exposes the current and future potential of wireless Physical Layer Security. Then, Kapetanovic et al. present a novel application of Physical Layer Security: massive multiple-input multiple-output (MIMO) systems. In this article, the authors focus on the robustness of massive MIMO against eavesdropping while also outlining other important related challenges. The next article by Win et al. also focuses on secrecy with a particular emphasis on the role of interference. In particular, it discusses how one can engineer interference to ensure confidentiality. Next, the work by Zeng tackles the problem of using the Physical Layer for key generation. Apart from the passive eavesdropping attack commonly considered in the literature, the author also discusses three types of active attacks and proposes a new key generation scheme to defend against them. The next article by Kailkhura et al. describes the Security of a distributed inference framework comprising a group of spatially distributed nodes that acquire observations about a phenomenon of interest and transmit computed summary statistics to a fusion center. The authors propose efficient schemes to mitigate the impact of eavesdropping on distributed inference, and survey the currently available approaches along with avenues for future research. This first issue concludes with an article by Yu et al. that exposes the importance of Physical Layer features as a means to fingerprint and authenticate wireless devices.
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Wireless Physical Layer Security: Part 1 [Guest Editorial]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by these considerations, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fingerprinting techniques that exploit Physical Layer features for device identification. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together such tutorial-style and overview articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Wireless Physical Layer Security [{Guest} {Editorial}]
IEEE Communications Magazine, 2015Co-Authors: Walid Saad, Xiangyun Zhou, Merouane Debbah, H. Vincent PoorAbstract:The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new Security challenges that cannot be fully handled via traditional cryptographic means. In emerging wireless environments, devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techniques can be challenging. Motivated by this paradigm shift, substantial recent research has been investigating the use of the Physical Layer as a means to develop low-complexity and effective wireless Security mechanisms. Such techniques are grouped under the umbrella of Physical Layer Security. These techniques range from information-theoretic Security, which exploits channel advantages to thwart eavesdropping, to Physical Layer fi ngerprinting techniques that exploit Physical Layer features for device identifi cation. In this context, providing state-of-the-art tutorials on the various approaches to Physical Layer Security is of considerable interest. This Feature Topic gathers together tutorial-style and survey articles that provide an in-depth overview of the broad spectrum of Security opportunities brought forward by Physical Layer Security.
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Physical Layer Security in Wireless Communications - Physical Layer Security in Wireless Communications
2013Co-Authors: Xiangyun Zhou, Lingyang Song, Yan ZhangAbstract:Physical Layer Security has recently become an emerging technique to complement and significantly improve the communication Security of wireless networks. Compared to cryptographic approaches, Physical Layer Security is a fundamentally different paradigm where secrecy is achieved by exploiting the Physical Layer properties of the communication system, such as thermal noise, interference, and the time-varying nature of fading channels.Written by pioneering researchers, 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.The book starts with a brief introduction to Physical Layer Security. The rest of the book is organized into four parts based on the different approaches used for the design and analysis of Physical Layer Security techniques: Information Theoretic Approaches: introduces capacity-achieving methods and coding schemes for secure communication, as well as secret key generation and agreement over wireless channels Signal Processing Approaches: covers recent progress in applying signal processing techniques to design Physical Layer Security enhancements Game Theoretic Approaches: discusses the applications of game theory to analyze and design wireless networks with Physical Layer Security considerations Graph Theoretic Approaches: presents the use of tools from graph theory and stochastic geometry to analyze and design large-scale wireless networks with Physical Layer Security constraints Presenting high-level discussions along with specific examples, illustrations, and references to conference and journal articles, this is an ideal reference for postgraduate students, researchers, and engineers that need to obtain a macro-level understanding of Physical Layer Security and its role in future wireless communication systems.