Security-Enhanced SC-FDMA Transmissions Using Temporal Artificial-Noise and Secret Key Aided Schemes

Marzban, Mohamed F.; Shafie, Ahmed El; Al-Dhahir, Naofal; Hamila, Ridha

doi:10.1109/access.2019.2893801

Cited by 7 publications

(7 citation statements)

References 34 publications

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“…Hence, Alice cannot design her precoder based on any knowledge of the Alice-Eves links' channels. It is noteworthy that Alice could design an AN signal to hurt Eves using the knowledge of Alice-Bob link where the AN lies in a subspace orthogonal to the subspace spanned by the Alice-Bob channel vector [9], [13]. However, we skip this design in this paper since it is not going to change our scheme's design or add any insight to the problem under investigation.…”

Section: System Model and Proposed Secret-key-assisted Schemementioning

confidence: 99%

“…Some schemes relied on designing artificial-noise (AN) precoding schemes to confuse the eavesdropping nodes and reduce their signal-plus-interference-to-noise ratios (SINRs). These schemes can be divided into spatial [15], [16], temporal [9]- [11], or hybrid spatio-temporal [13] AN injection schemes.…”

mentioning

confidence: 99%

“…To achieve this goal, spatial AN injection schemes exploit the degrees of freedom provided by having multiple transmit antennas while the temporal AN schemes exploit the degrees of freedom due to the cyclic prefix (CP) insertion in the OFDM waveform. In [9], the authors proposed a temporal AN injection scheme for multi-user systems and proved that the number of useful temporal AN streams is dependent on the channel memories of the transmitter-legitimate receiver and transmitter-eavesdropper links. In [11], the authors controlled the processing time delays in amplify-and-forward relay-based communications to increase the AN covariance matrix rank at the eavesdroppers.…”

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confidence: 99%

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Novel Secret-Key-Assisted Schemes for Secure MISOME-OFDM Systems

Marzban,

Shafie,

Al-Dhahir

2021

Preprint

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We propose a new secure transmission scheme for uplink multiple-input single-output (MISO) orthogonal-frequency multiplexing (OFDM) systems in the presence of multiple eavesdroppers. Our proposed scheme utilizes the sub-channels orthogonality of OFDM systems to simultaneously transmit data and secret key symbols. The base station, Bob, shares secret key symbols with the legitimate user, Alice, using wiretap coding over a portion of the sub-channels. Concurrently, Alice uses the accumulated secret keys in her secret-key queue to encrypt data symbols using a one time pad (OTP) cipher and transmits them to Bob over the remaining sub-channels. if Alice did not accumulate sufficient keys in her secret-key queue, she employs wiretap coding to secure her data transmissions. We propose fixed and dynamic sub-channel allocation schemes to divide the sub-channels between data and secret keys. We derive the secrecy outage probability (SOP) and the secure throughput for the proposed scheme. We quantify the system's security under practical non-Gaussian transmissions where discrete signal constellation points are transmitted by the legitimate source nodes. Numerical results validate our theoretical findings and quantify the impact of different system design parameters.

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Section: System Model and Proposed Secret-key-assisted Schemementioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Novel Secret-Key-Assisted Schemes for Secure MISOME-OFDM Systems

Marzban,

Shafie,

Al-Dhahir

2021

Preprint

Self Cite

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“…We assume perfect channel state information (CSI) knowledge at IAB-donor. Further, LZFBF is used to suppress the inter-stream interference between (D + 1) independent spatial streams of backhaul and direct links [40], [41]. Hence, the second and third terms can be omitted from (3) and the received SINR at d th drone can be calculated as:…”

Section: A Backhaul Downlink Transmissionsmentioning

confidence: 99%

Interference Management in UAV-Assisted Integrated Access and Backhaul Cellular Networks

et al. 2019

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An integrated access and backhaul (IAB) network architecture can enable flexible and fast deployment of nextgeneration cellular networks. However, mutual interference between access and backhaul links, small inter-site distance and spatial dynamics of user distribution pose major challenges in the practical deployment of IAB networks. To tackle these problems, we leverage the flying capabilities of unmanned aerial vehicles (UAVs) as hovering IAB-nodes and propose an interference management algorithm to maximize the overall sum rate of the IAB network. In particular, we jointly optimize the user and base station associations, the downlink power allocations for access and backhaul transmissions, and the spatial configurations of UAVs. We consider two spatial configuration modes of UAVs: distributed UAVs and drone antenna array (DAA), and show how they are intertwined with the spatial distribution of ground users. Our numerical results show that the proposed algorithm achieves an average of 2.9× and 6.7× gains in the received downlink signal-to-interference-plus-noise ratio (SINR) and overall network sum rate, respectively. Finally, the numerical results reveal that UAVs cannot only be used for coverage improvement but also for capacity boosting in IAB cellular networks.Index Terms-3D localization, downlink, drone, drone antenna array (DAA), in-band, integrated access and backhaul (IAB), optimization, UAV.

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“…The most important purpose of these methods is maximizing the secrecy rate. To maximize the secrecy rate and apply physical layer security in these networks, transmission of artificial noise [3]- [6] and multiple antennas systems [7]- [9] are commonly used methods. As we know, there are two conventional categories of jamming signal that are considered to enhance physical layer security in wireless networks:…”

Section: Introductionmentioning

confidence: 99%

Bit Error Probability Instead of Secrecy Rate Criterion to Enhance Performance for Secure Wireless Communication Systems

Taghipour¹,

Azmi²,

Mokari³

et al. 2019

Preprint

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In this paper, we propose a new practical power allocation technique based on bit error probability (BEP) for physical layer security systems. It is shown that the secrecy rate that is the most commonly used in physical layer security systems, cannot be a suitable criterion lonely. Large positive values are suitable for the secrecy rate in physical layer security, but it does not consider the performance of the legitimate and adversary users. In this paper, we consider and analyze BEP for physical layer security systems because based on it, the performance of the legitimate and adversary users are guaranteed and it is needed to use lower power. BEP is calculated for the legitimate and adversary users and it is shown that BEP can be better criterion for performance evaluation of the physical layer security systems. Based on BEP, the optimum transmit power is obtained and a new definition for outage probability is proposed and obtained theoretically. Also, the proposed approach is applied for adversary users with unknown mode and the cooperative adversary users. Simulation results show that the proposed method needs more than 5dB lower power for different scenarios.

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Security-Enhanced SC-FDMA Transmissions Using Temporal Artificial-Noise and Secret Key Aided Schemes

Cited by 7 publications

References 34 publications

Novel Secret-Key-Assisted Schemes for Secure MISOME-OFDM Systems

Novel Secret-Key-Assisted Schemes for Secure MISOME-OFDM Systems

Interference Management in UAV-Assisted Integrated Access and Backhaul Cellular Networks

Bit Error Probability Instead of Secrecy Rate Criterion to Enhance Performance for Secure Wireless Communication Systems

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