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Reducing PAPR in NOMA Waveforms Using Genetic-Enhanced PTS and SLM: A Low-Complexity Approach for Improved throughput, power spectral density, and Power Efficiency
Published 2025-06-01“…The High Peak-to-Average Power Ratio (PAPR) remains a critical challenge in Non-Orthogonal Multiple Access (NOMA) waveforms, particularly with growing subcarrier configurations. Traditional PAPR reduction methods, including clipping, filtering, and pre-coding, tend to compromise the bit error rate (BER), add spectral inefficiency, or incur high computational complexity, rendering them unsuitable for real-time use in 5G and future wireless systems. …”
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463
Design of Radix-8 Unsigned Bit Pair Recoding Algorithm-Based Floating-Point Multiplier for Neural Network Computations
Published 2025-01-01“…Finally, the MAC design uses 16-bit FP arithmetic with an <inline-formula> <tex-math notation="LaTeX">$8\times 8$ </tex-math></inline-formula> mantissa multiplier for the CNN accelerator is developed, and it is validated with suitable error metrics like Mean Relative Error (MRE) to assess the suggested architecture for AI applications.…”
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464
A Subimage Autofocus Bistatic Ground Cartesian Back-Projection Algorithm for Passive Bistatic SAR Based on GEO Satellites
Published 2025-04-01“…However, PBSAR faces dual challenges in computational efficiency and phase error compensation. Traditional accelerated back-projection (BP) variants developed from monostatic SAR are incompatible with PBSAR’s geometry, and autofocus BP (AFBP) methods exhibit prohibitive computational costs and inadequate space-variant phase error handling. …”
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465
Neural ODE-Based Dynamic Modeling and Predictive Control for Power Regulation in Distribution Networks
Published 2025-06-01“…Application scenarios, including Conservation Voltage Reduction (CVR) and supply–demand balancing, further illustrate the practical potential of the proposed approach for enhancing the operation and efficiency of modern distribution networks.…”
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466
Method for limiting the peak factor using an additional compensation signal in a system with orthogonal frequency division multiplexing for a Gaussian channel
Published 2024-10-01“…The main disadvantage of OFDM is the high peak-power-to-average-power ratio (PAPR), which is indicated by an increase in the bit error rate due to the nonlinearity of the power amplifier. …”
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467
A low-complexity AMP detection algorithm with deep neural network for massive mimo systems
Published 2024-10-01“…However, existing detection methods have not yet made a good tradeoff between Bit Error Rate (BER) and computational complexity, resulting in slow convergence or high complexity. …”
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468
PCA-FSA-MLR Model and Its Application in Runoff Forecast
Published 2021-01-01“…To improve the accuracy of runoff forecast,and establish a runoff forecast model combining principal component analysis (PCA),future search algorithm (FSA),and multiple linear regression (MLR),this paper reduces the dimensionality of the sample data by PCA,selects 8 standard test functions and simulates and verifies FSA under different dimensional conditions,optimizes MLR constant terms and partial regression coefficients by FSA,proposes a PCA-FSA-MLR runoff forecast model,constructs PCA-LS-MLR,PCA-FSA-SVM,and PCA-SVM models with dimensionality reduction processing by PCA and FSA-MLR,LS-MLR,FSA-SVM,and SVM without dimensionality reduction processing as a comparison model,and verifies each model through forecasting the annual runoff and monthly runoff in December of Longtan station in Yunnan Province.The results show that:①FSA has better optimization accuracy and global extremum search ability under different dimensional conditions;②The average absolute relative error of the annual runoff and monthly runoff in December of Longtan station through PCA-FSA-MLR model are 1.63% and 3.91% respectively,and its forecast accuracy is better than the other 7 models,with higher forecast accuracy and stronger generalization ability;③For the same model,the forecast accuracy after dimensionality reduction processing by PCA is better than that without dimensionality reduction processing,so the data dimensionality reduction by PCA is helpful to improve the forecast accuracy of models.…”
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469
Revised Lie Group Analysis of the Time Fractional (2+1)-Dimensional Zakharov-Kuznetsov (<i>q</i>, <i>p</i>, <i>r</i>) Equation
Published 2025-05-01“…Our findings not only correct previous errors in the literature but also introduce new results, such as the Lie transformation group and optimal system for this model. …”
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470
ARIMA based projection of infant mortality rate by the year 2030: a comparative analysis of India and Madhya Pradesh
Published 2025-08-01“…The deployed model is well fitted as mean absolute percentage error lies below 5%. During 2010–20, India and MP witnessed a decadal reduction of 40% and 31% in IMR, respectively. …”
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471
Reducing peak-to-average power ratio of filtered non-orthogonal multiple access and new radio 5g waveforms using hybrid partial transmit sequence-companding technique
Published 2025-02-01“…A high PAPR in multicarrier systems can be efficiently mitigated by applying partial transmit sequence (PTS). Combining PAPR reduction techniques can improve the transmission efficiency by nonlinearly scaling the signal amplitudes before transmission and inversely scaling them at the receiver. …”
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472
Advanced 5G Channel Estimation in mmWave MIMO Systems: Leveraging Compressive Sensing for Enhanced Performance
Published 2025-01-01“…The simulation results demonstrate that the proposed method achieves superior normalized mean square error (NMSE) performance compared to traditional CS-based techniques. …”
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473
Regional Short‐Term Wind Power Prediction Based on CEEMDAN‐FTC Feature Mapping and EC‐TCN‐BiLSTM Deep Learning
Published 2025-06-01“…Finally, case studies elucidate the efficacy of the proposed WPP method, illustrating a 0.41%–2.4% diminution in 24‐h‐ahead root mean square error (RMSE) and a 0.68%–2.63% reduction in 96‐h‐ahead RMSE relative to conventional methodologies.…”
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474
Non-intrusive Load Decomposition Model Based on Deep Fusion of Multi-modal Integration
Published 2023-02-01Get full text
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475
Transceiver Design for Full-Duplex UAV Based Zero-Padded OFDM System With Physical Layer Security
Published 2021-01-01“…In addition, Low density parity check (LDPC) and repeat and accumulate (RA) channel coding with cholesky decomposition based ZF and minimum mean square error signal detection schemes for improved bit error rate (BER) are also introduced. …”
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476
Задача целочисленного сбалансирования трехмерной матрицы и алгоритмы ее решения
Published 2010-06-01“…The problem of minimization of the errors of rounding off in the problem of integer-valued balancing is explored.…”
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477
A comparative study of ultra-massive MIMO intelligent receivers with adversarial robustness and energy efficiency for 6G applications
Published 2025-06-01“…Simulation results demonstrate that the optimized Minimum Mean Square Error (MMSE) detector achieves up to 95 % reduction in Bit Error Rate (BER) compared to Zero-Forcing (ZF) in small-to-medium UM-MIMO configurations (2 × 2 to 32 × 32), as shown in Tables (4 and 5), while maintaining computational feasibility. …”
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478
Asymmetrically Reconstructed Optical OFDM for Visible Light Communications
Published 2016-01-01Get full text
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479
An Integrated Spatial-Spectral Denoising Framework for Robust Electrically Evoked Compound Action Potential Enhancement and Auditory Parameter Estimation
Published 2025-06-01“…This matrix undergoes spatial noise reduction via an improved spatial median (I-Median) filter. …”
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480
Fabry Disease: An Update Based on Evidence and Experience
Published 2025-06-01Get full text
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