Efficient Alamouti-Coded Spatial Modulation for Secrecy Enhancing

Shang, Pingping; Kim, Sooyoung; Jiang, Xueqin

doi:10.1109/ictc46691.2019.8939906

Cited by 12 publications

(29 citation statements)

References 12 publications

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“…On the other hand, the third node, named Eve, is the passive eavesdropper node. Figure 1 shows a block diagram for the Alamouti-coded PLS with AN [10]. In this system, it is assumed that Alice is equipped with three antennae, while Bob and Eve are equipped with only one antenna, respectively.…”

Section: Alamouti Coded Pls With Anmentioning

confidence: 99%

“…We estimate the secrecy performance in terms of C s in (27), and Figure 3 compares the simulation results of the average secrecy capacity. For comparative purpose, we implement a number of conventional schemes: (1) the Alamouti scheme [15], (2) the LD-QO-STBC scheme [14], (3) the QO-STBC scheme with power scaling [13], (4) the Alamouti scheme with AN [10], and (5) the proposed scheme. Because we assume that Bob and Eve have perfect CSI of their own and the same SNR, the secrecy capacities of the conventional schemes without any AN or AI, i.e., (1), (2), and (3), are almost zero.…”

Section: Performance Evaluationmentioning

confidence: 99%

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Waveform Design for Space–Time Coded MIMO Systems with High Secrecy Protection

2020

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In this paper, we present a new secrecy-enhancing scheme for multi-input-multi-output (MIMO) systems using a space–time coding scheme. We adopt a quasi-orthogonal space–time block coding (QO-STBC) scheme that was originally designed to improve the performance of the MIMO system, and propose an efficient waveform design that can enhance the secrecy, as well as improve the error rate performance. Channel- and signal-dependent artificial interference (AI) is added to the proposed waveform, so that only a legitimate receiver can successfully retrieve information. We investigate the secrecy capacity of the proposed scheme, and demonstrate that the proposed scheme provides highly enhanced secrecy performance, compared to the conventional schemes. The performance simulation results reveal that the transmitted information can be properly extracted only at the legitimate receiver.

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Section: Alamouti Coded Pls With Anmentioning

confidence: 99%

Section: Performance Evaluationmentioning

confidence: 99%

Waveform Design for Space–Time Coded MIMO Systems with High Secrecy Protection

2020

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“…Furthermore, the BER results are verified by the theoretical upper bounds. Our extensive computer simulations reveal that the proposed scheme outperforms the conventional [8] and the efficient Alamouti [9] schemes in terms of the secrecy and the BER performance. Finally, we note that the CIOD-IM scheme is suitable for future low-complexity and massive MIMO systems by providing satisfactory BER results.…”

Section: Introductionmentioning

confidence: 95%

“…However, the BER performance of this system model is open to improvement through diversity techniques. Thus, in [9], Alamouti's space time block code (STBC) is utilized to provide diversity gain. Two AN signals are transmitted from the active antennas of Alamouti's scheme and they are cancelled out at Bob.…”

Section: Introductionmentioning

confidence: 99%

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Index Modulation Based Coordinate Interleaved Orthogonal Design for Secure Communications

Ozpoyraz

Yildirim

Başar

2021

IEEE Trans. Veh. Technol.

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In this paper, we propose a physical layer security scheme that exploits a novel index modulation (IM) technique for coordinate interleaved orthogonal designs (CIOD). Utilizing the diversity gain of CIOD transmission, the proposed scheme, named CIOD-IM, provides an improved spectral efficiency by means of IM. In order to provide a satisfactory secrecy rate, we design a particular artificial noise matrix, which does not affect the performance of the legitimate receiver, while deteriorating the performance of the eavesdropper. We derive expressions of the ergodic secrecy rate and the theoretical bit error rate upper bound. In addition, we analyze the case of imperfect channel estimation by taking practical concerns into consideration. It is shown via computer simulations that the proposed scheme outperforms the existing IM-based schemes and might be a candidate for future secure communication systems.

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Energy‐efficient physical layer security schemes for low Earth orbit satellite systems

Chan,

Kim,

Kim

et al. 2024

Satell Commun Network

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SummaryThis paper introduces four proposals to enhance physical layer security (PLS) in low Earth orbit (LEO) satellite systems. The first proposal leverages the Alamouti code aided by artificial noise (AN) and involves the collaborative use of two LEO satellites, ensuring secure downlink transmission. Its efficiency is further enhanced when implementing a power‐balanced Alamouti code. The second PLS proposal capitalizes on an reconfigurable intelligent surface (RIS) to introduce interference to potential eavesdroppers. As the RIS manages the reflected channel, this security measure is achieved without necessitating additional transmit power or receiver operations. The third proposal integrates the first and second solutions, resulting in improved secrecy rates compared to the individual proposals, nearly reaching the maximum achievable rate. The fourth proposal is based on a relay‐based method, securing all transmission links from the satellite to the relay and from the satellite and relay to the legitimate user. The secrecy performance simulation results presented in the paper demonstrate the remarkable effectiveness of the proposed solutions.

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Efficient Alamouti-Coded Spatial Modulation for Secrecy Enhancing

Cited by 12 publications

References 12 publications

Waveform Design for Space–Time Coded MIMO Systems with High Secrecy Protection

Waveform Design for Space–Time Coded MIMO Systems with High Secrecy Protection

Index Modulation Based Coordinate Interleaved Orthogonal Design for Secure Communications

Energy‐efficient physical layer security schemes for low Earth orbit satellite systems

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