Low-complexity timer-based multi-relay selection and sequential power allocation of cooperative cognitive radio networks for future Internet of things by Md Arifur Rahman, Youngdoo Lee, Insoo Koo

“…In cooperative cognitive radio networks, the transmission power of each relay is limited by the interference constraint of the primary user receiver. …”
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Energy-efficient power control for two-tier femtocell networks with block-fading channels by Zhixin Liu, Jieshuai Wu, Yang Liu, Hongjiu Yang, Jianfeng Guan, Yu Wang

“…We propose a novel scheme to derive optimal energy efficiency by transforming probability constraints into indicator function. …”
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Coordinated beamforming design in downlink multi-cell multi-user wireless networks by Pei-zhong XIE, Bao-yu ZHENG, Wen-jing YUE

“…To obtain the good sum-rate performance in multi-cell multi-user wireless networks with frequency reuse,coordinated beamforming design problem of co-channel interference mitigation was studied.Theoretical analysis results with the game theory show that,the collaborative beamforming vector of the optimal performance is a linear combination of selfishness and altruism strategy.A beamforming vector iteration algorithm to maximize sum-rate was presented,and estimation method about composite coefficient based on the statistic of channel state information was proposed.Finally， the results of simulation assess the performance of the algorithm and show convergence of the proposed algorithm.…”
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Multi-power cognitive access strategy based on multiple primary user traffic by Xiaoyu LI, Shouyi YANG, Xiaojuan ZHAO, Ruizhe ZHANG

“…In most of the cognitive radio (CR) network scenarios,there are multiple primary users (PU) with intense traffic.A novel multi-PU multi-state CR access mechanism and the corresponding multi-power access strategy based on the primary user traffic were proposed to address this problem.The method enabled the secondary user (SU) to access the optimal channel and adopt an appropriate power to transmit data,which could maximize the throughput of the CR system.Numerical simulation results show that the proposed method can enable the SU to take advantage of the information and resource of the multi-PU.The method not only minimizes the interference to the primary user,but also improves the achievable throughput of the CR system.…”
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Collaborative probability based multimodel target identification in wireless sensor networks by SUN Xin-yao, WANG Xue, WANG Sheng

“…A collaborative probability based multimodel target identification method for the applications in wireless sen-sor networks was proposed.Wavelet package was used to extract the features of the target information sample,and in or-der to decrease the computing complexity and reserve the key information as well,feature compaction,which achieved by principal components analysis,was carried out before learning.Different types of Gaussian classifier were developed for classifier learning.To gain global optimal results,committee decision was employed to select and combine individual decisions with dynamically adjusted weights.The experiment results verified that the method introduced can adapt to the interference factor of the environment and can implement target identification accurately and stably.…”
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An Integrated Mechanical Fault Diagnosis Framework Using Improved GOOSE-VMD, RobustICA, and CYCBD by Jingzong Yang, Xuefeng Li

“…Addressing the limitations of conventional methods in adaptive parameter optimization and weak feature enhancement, this paper proposes an innovative diagnostic framework integrating Improved Goose optimized Variational Mode Decomposition (IGOOSE-VMD), RobustICA, and CYCBD. …”
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Experimental Study on Glass Deformation Calculation Using the Holographic Interferometry Double-Exposure Method by Yucheng Li, Yang Zhang, Deyu Jia, Song Gao, Muqun Zhang

“…Results demonstrate that the double-exposure method achieves optimal balance across critical performance metrics through its ideal cosine fringe field modulation. …”
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Gradient Method with Step Adaptation by Vladimir Krutikov, Elena Tovbis, Svetlana Gutova, Ivan Rozhnov, Lev Kazakovtsev

“…Its convergence rate corresponds to algorithms with optimization of the step adaptation algorithm parameters. …”
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Single-Character-Based Embedding Feature Aggregation Using Cross-Attention for Scene Text Super-Resolution by Meng Wang, Qianqian Li, Haipeng Liu

“…Finally, an adaptive normalized color correction operation is applied to mitigate color distortion caused by background interference. In TextZoom benchmarking, the text recognition accuracies of different recognizers are 53.6%, 60.9%, and 64.5%, which are improved by 0.9–1.4% over the baseline TATT, achieving an optimal SSIM value of 0.7951 and a PSNR of 21.84. …”
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Performance of Hybrid Transmission of a D2D Communication With Energy Harvesting and Ambient Backscattering by Saranya Karattupalayam Chidambaram, Yogesh Kumar Choukiker, Abhijit Bhowmick

“…Analytical expressions for outage, ergodic capacity and throughput are developed for four different cases, and an overall scenario under an interference constraint. End-to-end overall throughput maximization problem for optimal sensing time and power allocation to SU and relay is studied. …”
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Intelligent anti-jamming communication technology with electromagnetic spectrum feature cognition. by Hui Zhao, Guobin Zhao, Xichun Wang, Zhonghui Zhang, Xianchao Xun

“…This study proposes an intelligent anti-interference algorithm that combines deep neural networks and game theory, and constructs a model based on near-end strategy optimization. …”
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LEO Constellations Satellite Selection Methods for Navigation Satellite Failure by XUE Wen, JIA Zhangmin, GUO Wen, ZHANG Qinhao, FANG Yanlong

“…The MEO navigation constellation confronts the issue of deteriorated navigation performance in the circumstances of satellite decommissioning and signal interference. Firstly, the satellite failure performance of Walker 24/3/1 MEO navigation constellation was analyzed to identify the failure mode that had the greatest impact on the constellation. …”
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Multi-power cognitive access strategy based on multiple primary user traffic by Xiaoyu LI, Shouyi YANG, Xiaojuan ZHAO, Ruizhe ZHANG

“…In most of the cognitive radio (CR) network scenarios,there are multiple primary users (PU) with intense traffic.A novel multi-PU multi-state CR access mechanism and the corresponding multi-power access strategy based on the primary user traffic were proposed to address this problem.The method enabled the secondary user (SU) to access the optimal channel and adopt an appropriate power to transmit data,which could maximize the throughput of the CR system.Numerical simulation results show that the proposed method can enable the SU to take advantage of the information and resource of the multi-PU.The method not only minimizes the interference to the primary user,but also improves the achievable throughput of the CR system.…”
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Fair Resource Allocation for Multiple Types of Services in Femto-Macro Heterogeneous Network by Chengyi Liu, Song Xing, Jing Hu, Weiwei Xia

“…Using the proportional fair to allocate the FBS transmit power for different variable-rate users was proposed to achieve fair allocated transmit rates in femto-macro heterogeneous network.The dual decomposition method was employed to find the optimal solution.Finally, the simulation results show that, besides protecting the individual QoS for each user, the proposed algorithm can not only provide fair resource allocation among variable-rate users,but also restrict the cross-tier interference to the MU.…”
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Intelligent security relay selection for full duplex wireless communications by Fang LIU, Yajuan WANG, Zhengrong LAI, Yuan’an LIU

“…Full-duplex can double the spectrum efficiency theoretically.Thus it can further improve the spectrum efficiency when it is used in the relay systems.Considering the residual self-interference and signal-to-noise ratio,a problem was set to maximize the security capacity by selecting the optimal relay.This optimization problem was transformed into multi-classification problem.Thus a convolutional neural network (CNN)-based intelligent relay selection scheme was proposed.In the design of the classification model,the CNN was used to extract the spatial correlation of the channel,and the dimension of the convolution kernel was related to the number of relays.The pooling layer was not used to preserve the matrix characteristics of the input features.The simulation results show that the proposed CNN-based intelligent selection classification model has high classification accuracy,and can obtain the same security performance as the traditional exhaustive search scheme,and the real-time performance is significantly improved.…”
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Mobile platform continuous authentication scheme based on gait characteristics by Li YANG, Zhuoru MA, Chenghui ZHANG, Qingqi PEI

“…The popularity of smart phones renders people extremely high requirements for safety.But the traditional one-time authentication method can’t continuously guarantee the security of equipment.To solve the problem,a continuous authentication scheme based on gait characteristics was proposed to realize the identification of current visitors.Moving average filtering,threshold-based useful information interception method and other operations were adopted to reduce noise interference.Template interception was used to maximize the utilization of information,and an optimal combination of time domain features and frequency domain features were proposed to reduce the storage space requirement of users’ information.Finally,the support vector machine realized the identity authentication function.Experiments show that the proposed scheme can effectively authenticate the identities of visitors.…”
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Neonatal Electroencephalogram Recording with a Dry Electrode Cap: A Feasibility Study by Amirreza Asayesh, Indhika Fauzhan Warsito, Jens Haueisen, Patrique Fiedler, Sampsa Vanhatalo

“…The real infant recordings were assessed for the EEG signals’ spectral characteristics, including powerline interference. Compared to gel-based caps, the dry caps showed a largely comparable skin force, an expectedly greater sensitivity to motion-induced artifacts, and a slightly lower powerline interference. …”
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Real-Time Depth Monitoring of Air-Film Cooling Holes in Turbine Blades via Coherent Imaging During Femtosecond Laser Machining by Yi Yu, Ruijia Liu, Chenyu Xiao, Ping Xu

“…A broadband super-luminescent diode with a 830 nm central wavelength and a 26 nm spectral bandwidth serves as the coherence-optimized illumination source. An optimal normalized reflectivity of 0.2 is established to maintain stable interference fringe visibility throughout the drilling process. …”
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Joint Channel Allocation and Power Control for Mission-Critical Applications in Sustainable Underwater Acoustic Networks by Sadaf Vahabli, Iftekhar Ahmad, Quoc Viet Phung, Daryoush Habibi

“…Based on these insights, a spectrum decision mechanism allocates appropriate channels, and the power control mechanism determines optimal transmission power levels that minimize interference with marine mammals. …”
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Zooming Into Precision: The Zoom TFD for High-Resolution Analysis of Non-Stationary Signals by Nisreen Said Amer, Samir Brahim Belhaouari

“…This paper introduces Zoom TFD, a time-frequency decomposition (TFD) method designed for the high-resolution analysis of non-stationary signals, achieving optimal energy concentration, high time-frequency resolution, and inherent cross-term suppression. …”
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