On the physical layer security of analog joint source channel coding schemes

Hodgson, Eduardo; Brante, Glauber; Souza, Richard Demo; Rebelatto, João Luiz

doi:10.1109/spawc.2015.7227105

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…Usually, diversity techniques such as using auxiliary nodes to aid in the transmission (cooperative diversity) (Mo et al, 2012) or furnishing legitimate nodes with multiple antennas (antenna diversity) (Chiodi et al, 2015 have been employed to enhance the security of CR wireless systems at the Physical Layer. Additionally, other techniques, such as beam-forming (Nguyen et al, 2016), artificial noise (Fang et al, 2016) and error control coding (Bloch et al, 2015, Hodgson et al, 2015 are also able to improve these systems secrecy performance. A comprehensive review regarding PLS for CR networks can be found in (Zou et al, 2016) and in references therein.…”

Section: Document Structurementioning

confidence: 99%

Physical Layer Security in Cognitive Radio Networks Using Improper Gaussian Signaling

et al. 2018

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Agradeço aos meus orientadores, professores Evelio e Samuel, pela amizade, confiança em mim, orientação durante o doutorado, atenção dedicada e aconselhamentos que guiaram de forma excelente minhas atividades acadêmicas. Obrigado. Agradeço ao professor Samuel Montejo-Sánchez pelo auxílio com esta pesquisa. Mesmo sem nos conhecermos pessoalmente, foi sempre muito prestativo, proporcionando uma troca de ideias profícua para os resultados desta tese. Muchas gracias. Agradeço aos professores Luis Lolis, Glauber Brante e Richard Souza, pelos comentários e ideias que contribuiram enormemente para o melhoramento da pesquisa contida neste trabalho. Um agradecimento especial aos colegas dos laboratórios de pesquisa da UFPR, que de forma direta ou indireta me ajudaram a começar e terminar essa caminhada acadêmica. Obrigado pela convivência, pelas conversas, debates e ideias. Por fim o agradecimento mais importante. Agradeçoà minha família, especialmente aos meus pais, Marcus e Maria Inês, por estarem sempre presentes. O presente trabalho foi parcialmente realizado com apoio da CAPES/CNPq-Brasil. "Coragem! Levanta-te! Ele te chama.". O cego se levanta, joga seu manto fora e pede que veja. Curado de sua cegueira, Bartimeu segue o caminho da verdade. Adaptado do evangelho de Sao Marcos

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Section: Document Structurementioning

confidence: 99%

Physical Layer Security in Cognitive Radio Networks Using Improper Gaussian Signaling

et al. 2018

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“…Ref. [26] used discrete-time fully analog joint source-channel coding over wireless channels to prevent eavesdropping. These secrecy coding schemes have theoretically proven to be close to the secrecy capacity.…”

Section: Introductionmentioning

confidence: 99%

Physical Layer Security Design for Polar Code Construction

2022

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In contrast to the network security that relies on upper-layer encryption for the confidentiality and authenticity of communications, physical layer security (PLS) exploits the uniqueness and randomness of the physical channel to encrypt information and enhance the security of the system. In this paper, we study the PLS of a polar-coded wireless communication system. To be more specific, we leverage the unique properties in polar code construction and propose a channel quality indicator (CQI)-based frozen-bit pattern generation scheme. The transmitter employs the Gaussian approximation algorithm to generate the corresponding frozen bit pattern according to the instantaneous CQI of the legitimate link. At the receiver, by leveraging the full channel reciprocity in the time-division duplex (TDD) mode, we can map the CQI to the corresponding frozen bit pattern and correctly decode the received bits. By contrast, the eavesdropper was unable to have the knowledge of the legal channel, and hence cannot determine the frozen bit pattern of the polar-coded bit sequence. Our simulation results demonstrate that by adopting the proposed PLS key generation scheme, Eve was hardly able to correctly decode a complete frame, leading to a high block error rate (BLER), while Bob was able to attain a 10−5 BLER.

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“…It is worth saying that such kinds of mappings have been used for security purposes in a totally different scenario. In [26], the physical layer security was analyzed for a wireless classical channel.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Continuous-Variable Quantum Key Distribution by State Preparation With Shannon-Kotel'nikov Maps

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2019

JCIS

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We propose a continuous-variable quantum key distribution protocol that uses Shannon-Kotel'nikov maps for preparing coherent quantum states. Our protocol has similarities with the no-switching protocol in the sense that it requires that both quadratures need to be measured. It is also a Gaussian modulated protocol, because the secret key is to be extracted from Gaussian parameters. The use of this kind of map in the preparation of coherent states allows the increase in the sourceto-distortion ratio (SDR) between Alice and Bob, thus making information reconciliation easier. This increase in SDR is due to the use of nonlinear maps of higher dimension instead of simply raising Alice's variance. We analyze here two kind of maps: the uniform Archimedes' spiral and the geodesics on a flat torus. We assess the security of our protocol through simulations. In order to do that, we simulate the optimal feedforward attack together with a maximum-likelihood receiver, then we use Kraskov's first algorithm to estimate the mutual information.

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On the physical layer security of analog joint source channel coding schemes

Cited by 5 publications

References 21 publications

Physical Layer Security in Cognitive Radio Networks Using Improper Gaussian Signaling

Physical Layer Security in Cognitive Radio Networks Using Improper Gaussian Signaling

Physical Layer Security Design for Polar Code Construction

Enhancing Continuous-Variable Quantum Key Distribution by State Preparation With Shannon-Kotel'nikov Maps

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