tailieunhanh - Wavelet transform application based on matlab simulation

In this thesis, the two systems are simulated with particular parameters and the performance of Bit Error Rate (BER) is evaluated to determine the different types of wavelets in various channel conditions with separate modulation methods (8, 16, 32-QAM). Therefore, MIMO-OFDM system based on DWT algorithm will be compared with MIMO-OFDM system based on FFT algorithm by using MATLAB simulation software. | VNU Journal of Science Mathematics Physics Vol. 36 No. 1 2020 87-94 Original Article Wavelet Transform Application Based on Matlab Simulation Nguyen Minh Tan1 Hua-Ming Chen2 Binh Duong Giap1 Hoang Le Quang Nhat3 1 Department of Electronic Engineering College of Electrical Engineering and Computer Science National Kaohsiung University of Science and Technology Taiwan 2 Institute of Photonics Engineering College of Electrical Engineering and Computer Science National Kaohsiung University of Science and Technology Taiwan 3 Department of Mechatronics Faculty of Technology Dong Nai Technology University Viet Nam Received 29 January 2020 Revised 21 February 2020 Accepted February 2020 Abstract Multiple Input Multiple Output MIMO and Orthogonal Frequency Division Multiplexing OFDM techniques are combined to provide the spectrum efficiency and high data rate improvement that it was required for 4G 5G wireless systems. Discrete Wavelet Transform DWT is presented as an alternative for Fast Fourier Transform FFT since there is no necessity for Cyclic Prefix CP due to the overlapping properties of DWT. By a simple replacement of the FFT with DWT in MIMO-OFDM system an improvement of performance has been detected which leads to a new system scenario MIMO-OFDM based on DWT. In this thesis the two systems are simulated with particular parameters and the performance of Bit Error Rate BER is evaluated to determine the different types of wavelets in various channel conditions with separate modulation methods 8 16 32-QAM . Therefore MIMO-OFDM system based on DWT algorithm will be compared with MIMO-OFDM system based on FFT algorithm by using MATLAB simulation software. And besides We would like to refer to use Neural Network algorithms to replace Wavelet transform in the next research. Keywords MIMO OFDM DWT FFT ANN. ________ Corresponding author. Email address i108152112@ https 2588-1124 87 88 . Tan et al. VNU Journal of Science .

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