Secrecy Capacity Region of Some Classes of Wiretap Broadcast Channels

Benammar, Meryem; Piantanida, Pablo

doi:10.1109/tit.2015.2463279

Cited by 19 publications

(26 citation statements)

References 24 publications

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“…Based on the new analytic expressions for the PDF and CDF of the Fisher-Snedecor F fading distribution given in (6) and 7, we analyze the average secrecy capacity, the secrecy outage probability, and the strictly-positive secrecy capacity.…”

Section: Phy Layer Security Over F Fading Channelsmentioning

confidence: 99%

“…III, we quantify the asymptotic performance when γ D → ∞, which can be also viewed as the scenario where the destination D is located close to the source S. As such, the asymptotic behavior can be derived based on the behavior of the PDF of γ k around the origin. Thus, the PDF, given in (5) or (6), and the CDF, given in 7, at high SNR regime can be rewritten as…”

Section: Asymptotic Analysismentioning

confidence: 99%

“…In this context, a general and compact analysis framework for the wireless informationtheoretic security of arbitrarily-distributed fading channels was presented in [4], whereas in [5], the authors investigated PLS in a random wireless network where both the legitimate and eavesdropping nodes are randomly deployed. The secrecy capacity of a wiretap broadcast channel with an external eavesdropper, where the source sends two private messages over a broadcast channel while keeping them secret from the eavesdropper, was studied in [6]. In addition, the authors in [7] evaluated the ASC performance of the classic Wyner's model over α-µ fading channels, while the authors in [8] derived closed-form expressions for the ASC, SOP and the SPSC assuming a classic Wyner's wiretap model over generalized-K fading channels.…”

Section: Introductionmentioning

confidence: 99%

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Achievable Physical-Layer Security Over Composite Fading Channels

et al. 2020

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We investigate the physical layer security limits of Wyner's wiretap model over Fisher-Snedecor F composite fading channels. F fading conditions have been recently shown to provide an accurate characterization of multipath fading and shadowing effects in emerging wireless transmission scenarios such as body centric, cellular and vehicular communications. To this end, we utilize a redefined analytic expression for the Fisher-Snedecor F distribution in order to ensure unconstrained validity and reliability when used in the analysis of various performance metrics of interest. In this context, we assume that the main channel (i.e., between the source and the legitimate destination) and the eavesdropper's channel (i.e., between the source and the illegitimate destination) undergo independent quasi-static Fisher-Snedecor F composite fading. Novel exact analytic expressions are then derived for the corresponding average secrecy capacity (ASC), secure outage probability (SOP) and probability of strictly positive secrecy capacity (SPSC) along with their insightful asymptotic representations. In addition, analytical expressions for the ASC, SOP and SPSC over mixed fading channels such as Nakagami-m/Nakagami-m, Nakagami-m/Fisher-Snedecor F and Fisher-Snedecor F/Nakagami-m are derived. The new formulations are validated through comparisons with Monte-Carlo simulations and analyzed to gain useful insights into the impact of the fading parameters on the achievable accuracy and the overall system performance. INDEX TERMS Average secrecy capacity, Fisher-Snedecor F distribution, physical layer security, secure outage probability.

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Section: Phy Layer Security Over F Fading Channelsmentioning

confidence: 99%

Section: Asymptotic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Achievable Physical-Layer Security Over Composite Fading Channels

et al. 2020

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“…(b) An analogous GPBC is constructed by replacing the eavesdropper's observation with a state sequence Z ∼ q n Z , non-causally revealing Z to the encoder and setting the state-dependent BC's transition kernel to p Y1,Y2|X,Z , i.e., the conditional marginal distribution of the WTBC's law p Y1,Y2,Z|X . is due to [13], where the regions for the SD-WTBC and the PD-WTBC were derived under the weak-secrecy metric, while assuming that the stochastic receiver is less noisy than the eavesdropper. The coding schemes therein does not rely on this less-noisy property; the converse proofs, however, do.…”

Section: A the Analogy And Its Implicationsmentioning

confidence: 99%

Wiretap and Gelfand-Pinsker Channels Analogy and Its Applications

Goldfeld

Permuter

2019

IEEE Trans. Inform. Theory

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An analogy framework between wiretap channels (WTCs) and state-dependent point-to-point channels with noncausal encoder channel state information (referred to as Gelfand-Pinker channels (GPCs)) is proposed. A good sequence of stealthwiretap codes is shown to induce a good sequence of codes for a corresponding GPC. Consequently, the framework enables exploiting existing results for GPCs to produce converse proofs for their wiretap analogs. The analogy readily extends to multiuser broadcasting scenarios, encompassing broadcast channels (BCs) with deterministic components, degradation ordering between users, and BCs with cooperative receivers. Given a wiretap BC (WTBC) with two receivers and one eavesdropper, an analogous Gelfand-Pinsker BC (GPBC) is constructed by converting the eavesdropper's observation sequence into a state sequence with an appropriate product distribution (induced by the stealthwiretap code for the WTBC), and non-causally revealing the states to the encoder. The transition matrix of the state-dependent GPBC is extracted from WTBC's transition law, with the eavesdropper's output playing the role of the channel state. Past capacity results for the semi-deterministic (SD) GPBC and the physically-degraded (PD) GPBC with an informed receiver are leveraged to furnish analogy-based converse proofs for the analogous WTBC setups. This characterizes the secrecycapacity regions of the SD-WTBC and the PD-WTBC, in which the stronger receiver also observes the eavesdropper's channel output. These derivations exemplify how the wiretap-GP analogy enables translating results on one problem into advances in the study of the other.

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“…Later on, Wyner considered a noisy scenario called wiretap channel [7], where the transmitter and the receiver are allowed to communicate through a discrete memoryless channel (DMC) with an eavesdropper at the receiver. The studies in this direction have been extended to broadcast channels (i.e., multiple receivers scenarios) [8]- [11].…”

Section: Introductionmentioning

confidence: 99%

Private Key and Group Key Generation Using Correlated Sources and Wiretap Broadcast Channel in Presence of One-Way Public Communication

Gong

Tao

et al. 2019

IEEE Access

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Encryption with shared key is one of the methods to ensure secure communication. To meet the requirements of keys, this paper investigates the problem of generating private key (PK) and group key (GK) using correlated sources and discrete memoryless wiretap broadcast channel (DM-WBC), in presence of oneway public communication. In the model considered, one transmitter (Alice) and three receivers (Bob, Carol and Eve) are connected via a DM-WBC, and a one-way communication over a public noiseless channel, initiated by Alice, is available. Alice and Bob wish to share a PK that is concealed from Carol and Eve, and they also want to generate a GK with Carol that needs to keep secret from Eve. Under this model, the key capacity regions of PK and GK are established by designing joint source-channel coding schemes to achieve these regions. In PK-generation, the considered model can be viewed as a one receiver two-eavesdropper model, and Alice and Bob have access to correlated source sequences. In GK-generation, the considered model can be viewed as a two-receiver one eavesdropper model, and the three legitimate parties (Alice, Bob and Carol) all have the source observations. Furthermore, the security performance of the generated keys are analyzed by analyzing key leakage rate of each key. INDEX TERMS Information-theoretic security, correlated source, wiretap broadcast channel, private key, group key, key capacity region.

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Secrecy Capacity Region of Some Classes of Wiretap Broadcast Channels

Cited by 19 publications

References 24 publications

Achievable Physical-Layer Security Over Composite Fading Channels

Achievable Physical-Layer Security Over Composite Fading Channels

Wiretap and Gelfand-Pinsker Channels Analogy and Its Applications

Private Key and Group Key Generation Using Correlated Sources and Wiretap Broadcast Channel in Presence of One-Way Public Communication

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