Search Results - (( data optimization mead algorithm ) OR ( papr reduction methods algorithm ))

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  1. 1
    PAPR Reduction Using Genetic Algorithm (GA) In OFDM System

    PAPR Reduction Using Genetic Algorithm (GA) In OFDM System by Mohd Ramdan, Fatin Najwa Nursyadza

    Published 2018
    “…The proposed GA method successfully reduces the PAPR performance in OFDM system.…”
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  2. 2
    New methods of partial transmit sequence for reducing the high peak-to-average-power ratio with low complexity in the ofdm and f-ofdm systems

    New methods of partial transmit sequence for reducing the high peak-to-average-power ratio with low complexity in the ofdm and f-ofdm systems by Abduljabbar, Yasir Amer

    Published 2019
    “…This thesis proposes novel methods and algorithms for reducing the high PAPR value with low computational complexity depending on the PTS technique. …”
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  3. 3
    A low complexity PAPR reduction scheme based on radix-II IFFT

    A low complexity PAPR reduction scheme based on radix-II IFFT by Kazemian, Mohsen, Varahram, Pooria, Mohd Ali, Borhanuddin, Mohammady, Somayeh

    Published 2015
    “…However high number of inverse fast Fourier transform (IFFT) block is required to achieve the desired PAPR reduction performance. In this paper a PAPR reduction method based on N point radix-2 IFFT is proposed in which the number of IFFTs is reduced to one. …”
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  4. 4
    Peak To Average Power Ratio Reduction In Wireless Orthogonal Frequency Division Multiplexing

    Peak To Average Power Ratio Reduction In Wireless Orthogonal Frequency Division Multiplexing by Wahab, Aeizaal Azman Abdul

    Published 2014
    “…It is mathematically verified that this method is potent to reduce PAPR. Simulation results show that about 2.2 dB reduction in PAPR value is achieved by this technique. …”
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    Thesis
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  5. 5
    A modified cross antenna rotation and inversion algorithm for Peak-to-Average Power Ratio Reduction in MIMO-OFDM systems

    A modified cross antenna rotation and inversion algorithm for Peak-to-Average Power Ratio Reduction in MIMO-OFDM systems by Janad, Mohanat, Al-Khateeb, Wajdi Fawzi Mohammed, Habaebi, Mohamed Hadi

    Published 2013
    “…Simulation results shows that the effect of PAPR reduction of introduced modified method is better than original CARI algorithm. …”
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  6. 6
    Wavelet Methods With Discrete Cosine Transform For Peak-To-Average Power Ratio And Bit Error Rate Reduction In Orthogonal Frequency Division Multiplexing Systems

    Wavelet Methods With Discrete Cosine Transform For Peak-To-Average Power Ratio And Bit Error Rate Reduction In Orthogonal Frequency Division Multiplexing Systems by Lim, Yong Liang

    Published 2019
    “…The first objective is to implement the improved PAPR reduction technique based on DCT on wavelet method. …”
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  7. 7
    Enhanced PAPR reduction and channel estimation techniques in multi-carrier wireless communication system

    Enhanced PAPR reduction and channel estimation techniques in multi-carrier wireless communication system by Ali Kareem, Nahar

    Published 2016
    “…First, a novel rotating phase shift (RPS) based on signal scrambling to reduce PAPR in OFDM system had been proposed. The search algorithm was used to solve the convex problem in selecting PAPR-RPS best phase shift factor based on the cost of computational complexity. …”
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    Thesis
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  8. 8
    Deterministic phase sequence approach for peak to average power ratio reduction in orthogonal frequency division multiplexing systems

    Deterministic phase sequence approach for peak to average power ratio reduction in orthogonal frequency division multiplexing systems by Kazemian, Mohsen

    Published 2016
    “…More importantly, it is proved that at the same PAPR reduction value, this scheme provides a complexity reduction of at least 42.3% over that of the EPTS scheme, and leads to the out-of-band distortion reduction. …”
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  9. 9
    Optimizing the SEIRD model for COVID-19 in Malaysia using pymoo framework

    Optimizing the SEIRD model for COVID-19 in Malaysia using pymoo framework by Abdul Hadi, Muhammad Salihi, Amran, Muhammad Aiman Haziqh, Zulkarnain, Norsyahidah

    Published 2025
    “…However, the introduction of time-dependent coefficients in both models increases the number of optimization variables. To solve this, the Nelder-Mead and Pattern Search algorithms were recommended. …”
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  10. 10
    Fitting time-varying coefficients SEIRD model to Covid-19 cases in Malaysia

    Fitting time-varying coefficients SEIRD model to Covid-19 cases in Malaysia by Zulkarnain, Norsyahidah, Abdul Hadi, Muhammad Salihi, Mohammad, Nurul Farahain, Shogar, Ibrahim

    Published 2023
    “…Nelder-Mead outperforms the other optimization algorithm with the least error. …”
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  11. 11
    Modelling transmission dynamics of covid-19 during Pre-vaccination period in Malaysia: a predictive guiseird model using streamlit

    Modelling transmission dynamics of covid-19 during Pre-vaccination period in Malaysia: a predictive guiseird model using streamlit by Zulkarnain, Norsyahidah, Abdul Hadi, Muhammad Salihi, Mohammad, Nurul Farahain, Shogar, Ibrahim

    Published 2023
    “…The mathematical model is solved using Scipy odeint function, which uses Livermore Solver for Ordinary Differential Equations with an Automatic method switching (LSODA) algorithm. The time-varying coefficients of SEIRD model that best fit the real data of COVID-19 cases are obtained using the Nelder-Mead optimization algorithm. …”
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