Ergodic Secrecy Rate of Optimal Source-Destination Pair Selection in Frequency-Selective Fading

Kotwal, Shashi Bhushan; Kundu, Chinmoy; Modem, Sudhakar; Dubey, Ankit; Flanagan, Mark F.

doi:10.1109/tvt.2022.3222729

Cited by 4 publications

(22 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reliability of the backhaul links affects the system performance, therefore, it is important to explore the effect of the backhaul uncertainty on the secrecy performance of transmitter selection schemes which have extensively been studied in [20][21][22][23][24][25][26][27][28]. Although the knowledge of backhaul link activity is crucial, it might not always be available for transmitter selection [24].…”

Section: Introductionmentioning

confidence: 99%

“…The unavailability of backhaul link activity knowledge, which we denote as the backhaul link activity knowledge unavailable (BKU) case, can result in selecting a transmitter with an inactive backhaul link. When the backhaul link activity knowledge is available, which we denote as the backhaul link activity knowledge available (BKA) case, the selection can be made from the set of transmitters with active backhaul links [25][26][27][28]. The knowledge of active backhaul links improves the secrecy performance.…”

Section: Introductionmentioning

confidence: 99%

“…However, the SOP was not evaluated, and the MIN-ES and TTS schemes were not considered. In [28], the authors evaluated the SOP and ESR for TTS and OTS schemes, including multiple eavesdroppers in the BKA case under the frequency-selective fading channels condition. However, the MIN-ES scheme was not studied.…”

Section: Introductionmentioning

confidence: 99%

“…However, the MIN-ES scheme was not studied. In all the above-mentioned papers [25][26][27][28][29], the MIN-ES scheme was not considered with wireless backhaul links. The systems with multiple eavesdroppers in [27,28] consider only the non-colluding case.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the traditional methodologies used in [17,[19][20][21][22][23][24] do not capture the ratio of destination SNR to eavesdropping SNR, therefore, are not suitable for evaluating the secrecy of the OTS scheme. Although the authors in [27] and [28] considered multiple eavesdroppers, a straightforward non-colluding case was considered where the secrecy performance is determined against the eavesdropper with maximum instantaneous SNR. Furthermore, none of the aforementioned papers have studied the MIN-ES scheme.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Transmitter selection for secrecy against colluding eavesdroppers with backhaul uncertainty

2023

Self Cite

View full text Add to dashboard Cite

Due to the exponential growth of interconnected devices and reduced cell coverage, beyond fifth‐generation networks will be dense. Thus, instead of wired backhaul, wireless backhaul will be cost‐effective and flexible. For security in multi‐transmitter systems, sub‐optimal and optimal transmitter selection schemes exist. However, including backhaul activity knowledge available (BKA) and backhaul activity knowledge unavailable (BKU) cases and transmitter selection schemes, there is no generalized secrecy analysis method. Moreover, evaluation of the ergodic secrecy rate (ESR) of the optimal selection schemes is impossible using existing solution approaches. To address these, two sub‐optimal and optimal transmitter selection schemes are proposed for a small‐cell multi‐transmitter system in BKU or BKA cases in the presence of multiple colluding eavesdroppers. The distribution of the ratio of the destination channel SNR and eavesdropping channel SNR is derived, thereby providing different secrecy performance metrics uniformly irrespective of selection schemes and BKU or BKA cases. Simplified asymptotic expressions are provided to elucidate the influence of the system parameters and of the backhaul reliability. It is observed that the secrecy performance improves when the knowledge of backhaul link activity is utilized, and the improvement is most noticeable when the backhaul is highly unreliable. It is also observed that while the secrecy performance degrades with an increasing number of eavesdroppers, neither the asymptotic saturation value of the secrecy outage probability nor the rate of improvement of the ESR with signal‐to‐noise‐ratio depends on the number of eavesdroppers.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Transmitter selection for secrecy against colluding eavesdroppers with backhaul uncertainty

2023

Self Cite

View full text Add to dashboard Cite

show abstract

Destination Scheduling for Secure Pinhole-Based Power-Line Communication

Kundu,

Dubey,

Tonello

et al. 2023

IEEE Open J. Commun. Soc.

Self Cite

View full text Add to dashboard Cite

We propose an optimal destination scheduling scheme to improve the physical layer security (PLS) of a power-line communication (PLC) based Internet-of-Things system in the presence of an eavesdropper. We consider a pinhole (PH) architecture for a multi-node PLC network to capture the keyhole effect in PLC. The transmitter-to-PH link is shared between the destinations and an eavesdropper which correlates all end-to-end links. The individual channel gains are assumed to follow independent lognormal statistics. Furthermore, the additive impulsive noise at each node is modeled by an independent Bernoulli-Gaussian process. Exact computable expressions for the average secrecy capacity (ASC) and the probability of intercept (POI) performance over many different networks are derived. Approximate closed-form expressions for the asymptotic ASC and POI are also provided. We find that the asymptotic ASC saturates to a constant level as transmit power increases. We observe that the PH has an adverse effect on the ASC. Although the shared link affects the ASC, it has no effect on the POI. We show that by artificially controlling the impulsive to background noise power ratio and its arrival rate at the receivers, the secrecy performance can be improved.

show abstract

Transmitter Selection for Secrecy in Frequency-Selective Fading With Multiple Eavesdroppers and Wireless Backhaul Links

Kotwal,

Kundu,

Modem

et al. 2024

IEEE Trans. Veh. Technol.

Self Cite

View full text Add to dashboard Cite

This paper investigates the secrecy performance of sub-optimal transmitter selection and optimal selection schemes in a system comprising multiple transmitters, multiple eavesdroppers, and a single destination in frequency-selective fading channels with single-carrier cyclic-prefixed modulation. Considering unreliable backhaul links between the access point and the transmitters, we analyze secrecy performance in two scenarios: when backhaul activity knowledge is available (KA) and when backhaul activity knowledge is unavailable (KU). Closed-form expressions for the secrecy outage probability (SOP) and the ergodic secrecy rate (ESR) are derived. Our analytical results show that in the backhaul KA scenario, the asymptotic limit of the SOP and the slope of the ESR are affected only by the number of transmitters and the backhaul reliability factor, and not by other system parameters. In contrast, only the backhaul reliability factor affects these two performances in the backhaul KU scenario. These performances are independent of the number of eavesdroppers in both backhaul KA and KU scenarios. Our findings demonstrate that acquiring knowledge of the activity of backhaul links yields better secrecy performance as compared to acquiring knowledge of the channel state information of the eavesdroppers. We also show that the secrecy diversity order of both selection schemes under perfectly reliable (wired) backhaul links is identical.

show abstract

Ergodic Secrecy Rate of Optimal Source-Destination Pair Selection in Frequency-Selective Fading

Cited by 4 publications

References 27 publications

Transmitter selection for secrecy against colluding eavesdroppers with backhaul uncertainty

Transmitter selection for secrecy against colluding eavesdroppers with backhaul uncertainty

Destination Scheduling for Secure Pinhole-Based Power-Line Communication

Transmitter Selection for Secrecy in Frequency-Selective Fading With Multiple Eavesdroppers and Wireless Backhaul Links

Contact Info

Product

Resources

About