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    Using random subcarrier weighting for multi-carrier systems physical layer security by Zhou ZHONG, Liang JIN, Kai-zhi HUANG

    Published 2012-10-01
    “…An OFDM security model and a physical layer security transmission scheme were proposed for multi-carrier systems to achieve low probability of interception.In contrast to the resource allocation algorithm which would be disabled at the low SNR,this method designed the subcarrier transmission weighting vectors to randomize the eavesdropper’s signals but not the authorized receiver’s signals.The channel state information was the only character to distinguish authorized receivers and eavesdroppers,which was conducted to guide the weighting vectors design.Simulation results show that the proposed method guarantees that authorized receiver performs transmitted reference demodulation successfully,while the eavesdroppers can not detect the transmitted symbols.…”
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    Using random subcarrier weighting for multi-carrier systems physical layer security by Zhou ZHONG, Liang JIN, Kai-zhi HUANG

    Published 2012-10-01
    “…An OFDM security model and a physical layer security transmission scheme were proposed for multi-carrier systems to achieve low probability of interception.In contrast to the resource allocation algorithm which would be disabled at the low SNR,this method designed the subcarrier transmission weighting vectors to randomize the eavesdropper’s signals but not the authorized receiver’s signals.The channel state information was the only character to distinguish authorized receivers and eavesdroppers,which was conducted to guide the weighting vectors design.Simulation results show that the proposed method guarantees that authorized receiver performs transmitted reference demodulation successfully,while the eavesdroppers can not detect the transmitted symbols.…”
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    Article
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    Two-layer interrupted versus two-layer continuous sutures for preventing cesarean scar defect: a randomized controlled trial by Shunichiro Tsuji, Daisuke Katsura, Shinsuke Tokoro, Ayako Inatomi, Yuri Nobuta, Yutaka Yoneoka, Tsukuru Amano, Takashi Murakami

    Published 2025-03-01
    “…We recruited pregnant women with ≥ 20 primary or previous cesarean sections. Participants were randomly assigned to either a two-layer interrupted or a two-layer continuous suture group. …”
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    Turbo detection-decoding method for bit-interleavered random layered space-time codes by LI Xiao-wei, CHEN Fang-jiong, WEI Gang

    Published 2006-01-01
    “…Based on one kind of layered space-time code which used bit-interleavered and random-layered model,a joint detection-decoding method based on the Turbo principle was proposed.The new method used soft-interference canceller and SISO decoder and improved the exchange of soft information between them.By iterative procession it improved the performance of the whole system.The potential practice capability is proved by simulation results and computational complexity analysis.…”
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    Turbo detection-decoding method for bit-interleavered random layered space-time codes by LI Xiao-wei, CHEN Fang-jiong, WEI Gang

    Published 2006-01-01
    “…Based on one kind of layered space-time code which used bit-interleavered and random-layered model,a joint detection-decoding method based on the Turbo principle was proposed.The new method used soft-interference canceller and SISO decoder and improved the exchange of soft information between them.By iterative procession it improved the performance of the whole system.The potential practice capability is proved by simulation results and computational complexity analysis.…”
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    Article
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    Physical layer security for SWIPT-NOMA system in presence of randomly located eavesdroppers by Yifan DING, Guangqiu LI, Hui LI

    Published 2022-03-01
    “…The combination of non-orthogonal multiple access (NOMA) and simultaneous wireless information and power transfer (SWIPT) technologies can improve spectrum efficiency of wireless system and solve the power supply problem of user nodes.However, when energy-harvesting receivers want to maliciously eavesdrop on confidential information sent by the base station, the information security transmission of SWIPT-NOMA system will be threatened.To enhance its physical layer security (PLS) performance, the PLS model of SWIPT-NOMA system with transmit antenna selection and power split strategies was proposed.When the spatial location randomly distributed energy-harvesting receivers obey the Poisson point process, the approximate expressions for the secrecy outage probability and non-zero secrecy capacity probability of SWIPT-NOMA system were derived by using the spatial Poisson probability generation function.Numerical and simulation results verify the accuracy of the expressions.The above expressions can also be used to study the influence of eavesdropper density, the distance between the base station and the far and near information receivers, the number of transmitting antennas and the power split factor on PLS performance of SWIPT-NOMA system.…”
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    Asymptotic Modeling of Coherent Scattering from Random Rough Layers: Application to Road Survey by GPR at Nadir by Nicolas Pinel, Cédric Le Bastard, Christophe Bourlier, Meng Sun

    Published 2012-01-01
    “…This paper studies the coherent scattering from random rough layers made up of two uncorrelated random rough surfaces, by considering 2D problems. …”
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    Effect of Random Distribution of Initial Imperfection Curvature on The Bearing Capacity of Double -Layer Flat Grids With Different Configurations by Arash Bayat, Hamidreza Ashrafi

    Published 2024-06-01
    “…For each structure, the initial curvature of the members was randomly assigned using a normal distribution, and then a nonlinear incremental load analysis was performed using the OpenSees software. …”
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    Bistable Multi‐Layer Triboelectric Nanogenerator for Harvesting Random and Ultra‐Low‐Frequency Vibration Energy with Increased Charge Transfer by Yi Guan, Xin Li, Zehan Wei, Mianxin Xiao, Zhihui Lai, Shuxiang Dong, Daniil Yurchenko, Shitong Fang

    Published 2025-08-01
    “…However, their low charge transfer under weak inputs limits efficiency in harvesting random and ultra‐low‐frequency wave energy. This paper proposes a novel bistable multi‐layer TENG (BM‐TENG) to address this challenge for self‐powered wireless sensing and lighting. …”
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    A Discrete Interferometric Model for a Layer of a Random Medium: Effects on InSAR Coherence, Power, and Phase by Saban Selim Seker, Fulya Callialp, Roger H. Lang

    Published 2025-04-01
    “…This study presents a discrete interferometric model for a random medium layer, establishing the link between radar interferometry and forest biophysical properties. …”
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