Beamforming in DWT-Based MIMO-OFDM Systems for 5G Communications
DOI:
https://doi.org/10.31838/NJAP/08.01.08Keywords:
5G, MIMO, OFDM, FFT, DWTAbstract
Due to the Discrete Wavelet Transform (DWT)-OFDM technology giving better frequency localization with respect to FFT-OFDM, it has been adopted in 5G systems, particularly in non-stationary channels, as it is more robust against multipath fading effects. Moreover, if the system can utilize beam forming, which offers significant benefits in terms of system performance, energy efficiency, and cost reduction, then it would be more effective at improving signal quality as noise decreases. In this paper, we combined the latter two features in one system to obtain their ability to cope with the challenges of 5G. This system offers a comprehensive analysis that is useful for applications that require both perspectives, such as signal processing for communication systems, denoising, or feature extraction. DWT MIMO-OFDM and with high-level digital modulation such as different amplitude shift phase key (DAPSK) when performing code to construct this system using MATLAB, this code implements beam forming as diversity due to using the MIMO system. The results show better BER performance despite the increasing data rate, capacity, efficiency, energy, and coverage. The improvements obtained from the suggested system can be adopted in signal compression, denoising, or pattern recognition applications in 5G.
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