Secure Multiple-Antenna Block-Fading Wiretap Channels With Limited CSI Feedback

Hyadi, Amal; Rezki, Zouheir; Alouini, Mohamed‐Slim

doi:10.1109/twc.2017.2727043

Cited by 15 publications

(9 citation statements)

References 46 publications

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“…Can we combine Marton's coding scheme [77] and channel feedback to further enhance the achievable secrecy rate region of the broadcast wiretap channel? -In practical wireless communication scenarios, the feedback CSI from the legitimate receiver to the transmitter is often imperfect [78][79][80]. How can we use the imperfect CSI feedback to enhance secrecy capacities of various wireless wiretap channel models?…”

Section: Discussionmentioning

confidence: 99%

Enhancing physical layer security via channel feedback: a survey

Dai

Li²,

Liang

et al. 2020

J Wireless Com Network

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Physical layer security (PLS), which is based on information-theoretic principles of message confidentiality, has attracted considerable attention in recent years. This paper provides a comprehensive survey of using channel feedback (CF) to enhance the quality of PLS of various communication models. To be specific, the survey starts from the secret key-based CF scheme and its variations for the wiretap channel (WTC) and other communication models. Then, for the WTC and its generalized models, an improved feedback scheme and its variations are respectively introduced, where the improved scheme combines the secret key-based CF scheme with the Wyner-Ziv scheme for source coding with side information. It has been shown that these improved schemes perform better than the original secret key-based schemes for several cases. Next, the Schalkwijk-Kailath (SK) feedback scheme and its variations are introduced, which are optimal for the Gaussian WTC and its variations. Finally, the already existing CF schemes are summarized and the future challenges of using CF to enhance PLS are discussed.

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Section: Discussionmentioning

confidence: 99%

Enhancing physical layer security via channel feedback: a survey

Dai

Li²,

Liang

et al. 2020

J Wireless Com Network

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“…The large space freedom provided by the large-scale antenna arrays can be used to improve the secrecy performance [20]. In physical layer security, in order to hide their presence, eavesdroppers (Eves) are usually considered to be passive, so that their channel state information (CSI) is unknown at both the transmitter (Alice) and the legitimate receiver (Bob).…”

Section: Previous Workmentioning

confidence: 99%

On the Secrecy Capacity of 5G New Radio Networks

Xiao

Zhang

2018

Wireless Communications and Mobile Computing

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The new radio technology for the fifth-generation wireless system has been extensively studied all over the world. Specifically, the air interface protocols for 5G radio access network will be standardized by the 3GPP in the coming years. In the next-generation 5G new radio (NR) networks, millimeter wave (mmWave) communications will definitely play a critical role, as new NR air interface (AI) is up to 100 GHz just like mmWave. The rapid growth of mmWave systems poses a variety of challenges in physical layer (PHY) security. This paper investigates those challenges in the context of several 5G new radio communication technologies, including multiple-input multiple-output (MIMO) and nonorthogonal multiple access (NOMA). In particular, we introduce a ray-tracing (RT) based 5G NR network channel model and reveal that the secrecy capacity in mmWave band widely depends on the richness of radio frequency (RF) environment through numerical experiments.

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“…So far, numerous investigations have been reported on the PHY security of different wireless systems such as dual-hop relaying systems, multiple-input multiple-output (MIMO) systems, and orthogonal space-time block coding (OSTBC) systems in the literature, where some interesting methods have been introduced for enhancing the PHY security in these systems, e.g. [1][2][3][4][5][6][7][8]. For example, in [1], a technique based on phase rotation is proposed for securing the OSTBC systems without requiring channel state information (CSI) at the transmitter (Tx) side.…”

Section: Introductionmentioning

confidence: 99%