Physical layer security for space–time-block-coded MIMO system in Rician fading in the presence of imperfect feedback

Kumar, Rajiv; Chauhan, Sunita

doi:10.1007/s11276-020-02327-x

Cited by 3 publications

(3 citation statements)

References 25 publications

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“…The secrecy performance of the TAS/ MRC scheme is then evaluated and the impacts of outdated CSI have been studied using the numerical results obtained from closed-form expressions of exact ergodic secrecy rate and exact secrecy outage probability. In [27], the impact of imperfect CSI on the PHY secrecy performance of a space time block coded MIMO system is evaluated over Rician fading wiretap channel, showing the advantages of using MIMO system, with respect to the PHY security.…”

Section: Introductionmentioning

confidence: 99%

Secrecy performance analysis of amplify-and-forward cooperative network with relay selection in the presence of multiple eavesdroppers

2021

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The use of wireless transmission networks in various environments has become widespread. One of the main challenges in wireless networks is that the wireless transmission is highly vulnerable to eavesdropping attacks. In this paper, an amplifyand-forward cooperative relaying wireless system with relay selection is considered to improve the physical layer (PHY) security of the wireless system in the presence of multiple eavesdroppers, under two cases, namely, perfect channel state information (CSI) and outdated CSI cases. To evaluate the PHY security of the system, we derive closed-form expressions for the PHY security performance metrics, including the probability of non-zero secrecy capacity, the average secrecy capacity, and the secrecy outage probability. Then using those expressions, we obtain several numerical results under system parameters. The results show that relay selection provides significant improvement in the PHY security of the system. Moreover, it is observed that, when the CSI used to select the best relay is outdated, the PHY secrecy performance is relatively inferior compared to that of the perfect CSI case. Finally, the obtained mathematical expressions are also validated using Monte-Carlo simulation.

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Section: Introductionmentioning

confidence: 99%

Secrecy performance analysis of amplify-and-forward cooperative network with relay selection in the presence of multiple eavesdroppers

2021

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“…The obtained results showed a significant reduction in secrecy capacity due to imperfect CSI. In [19], the impact of imperfect CSI in a multi-user MIMO having selection transmission at the transmitter and maximum ratio combining (MRC) at the receivers was studied where PLS performance in terms of probability of non zero secrecy capacity and secrecy outage probability degrades with rise in imperfect CSI. In [20], the authors analysed the secrecy performance of a MIMO relay system under imperfect CSI.…”

Section: Introductionmentioning

confidence: 99%

Physical Layer Security by Interleaving and Diversity: Impact of Imperfect Channel State Information

Ajayi

Medjahdi²,

Mroueh

et al. 2021

2021 8th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI)

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In recent years, physical layer security (PLS) has emerged as a promising concept to complement cryptography solutions. Many PLS schemes require perfect knowledge of the channel state information (CSI) at the transmitter. However, in practical cases, CSI is often imperfect due to channel estimation errors, noisy feedback channels and outdated CSI. In this paper, we study the impact of imperfect CSI on an adaptive PLS scheme that combines diversity with interleaving to provide security. Particularly, we derive the secrecy capacity expressions for the legitimate receiver and the eavesdropper's channels under imperfect CSI conditions. Numerical and theoretical simulations for secrecy capacity and bit error rate (BER) are carried out for the frequency-selective Rayleigh fading wiretap channel model. The results reveal the negative impact of imperfect CSI on the secrecy and BER performance of the single input single output (SISO) orthogonal frequency division multiplexing (OFDM) system. The analysis is done under both frequency division duplex (FDD) and time division duplex (TDD) modes.

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“…Moreover, more research attempts were made for developing wireless PLS by using the artificial noise. [7][8][9] Targeting on transmission capacity of secure transmission, secrecy was analyzed in an interference-limited networks in Jiang et al 10 Kumar ang Chauhan 11 analyzed the PLS of space time block code (STBC) multi-input multi-output (MIMO) system over Rician fading channel with Imperfect channel state information (ICSI). Here, authors consider uncertainty into channel state information (CSI) is due to channel estimation error (CEE).…”

Section: Introductionmentioning

confidence: 99%

Physical layer security for multiuser multi‐eavesdropper multi‐input multi‐output (MIMO) system in the presence of imperfect feedback

Kumar

Chauhan

2020

Int J Communication

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SummaryIn this work, we analyze the physical layer security (PLS) for a multiuser (MUS) multi‐input multi‐output multi‐eavesdropper (MIMOME) wireless network using selection transmission (ST) at the base station (BS) with maximum ratio combining (MRC) at both of the receivers, receivers of legitimate users (LUs) as well as the receivers of illegitimate users over an uncorrelated Rayleigh fading channel. In this scenario, multiple users communicate to a BS at the same time multiple eavesdropper user may intercept the transmission. Next, we drive exact closed‐form expression for probability of nonzero secrecy capacity (PNZSC) and secrecy outage probability (SOP) in the presence of imperfect channel state information (ICSI). At last, we present the simulation results to authenticate the analytical results and analyze the impact of ICSI on PLS of MUS‐MIMOME system.

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Physical layer security for space–time-block-coded MIMO system in Rician fading in the presence of imperfect feedback

Cited by 3 publications

References 25 publications

Secrecy performance analysis of amplify-and-forward cooperative network with relay selection in the presence of multiple eavesdroppers

Secrecy performance analysis of amplify-and-forward cooperative network with relay selection in the presence of multiple eavesdroppers

Physical Layer Security by Interleaving and Diversity: Impact of Imperfect Channel State Information

Physical layer security for multiuser multi‐eavesdropper multi‐input multi‐output (MIMO) system in the presence of imperfect feedback

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