International Journal of Computer Network and Information Security (IJCNIS)
IJCNIS Vol. 14, No. 6, 8 Dec. 2022
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Design and Implementation of Adaptive Universal Filtered Multi Carrier for 5G and Beyond
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Author(s)
Index Terms
OFDM, Universal Filtered Multi-carrier (UFMC), Universal Filtered OFDM (UF- OFDM), Carrier Frequency Offset(CFO), Inverse Fast Fourier Transform (IFFT), QAM, OFDM-FSK, Cycle Prefix(CP), Maximum-Likelihood (ML), BER, LTE
Abstract
The current generation (5G) mobile communication system promises to accommodate a wide range of new applications and use scenarios, resulting in more flexible and unified connection. To satisfy the required criteria, the current waveform was replaced with new UF-OFDM, which combines the advantages of OFDM with enhanced spectral characteristics and greater resilience against time-frequency misalignments. However, its biggest disadvantage is the transmitter's computational complexity, which may be up to two hundred times that of OFDM if there is no reduction in complexity. The majority of current research on unique waveforms has focused on filter modification or performance enhancement strategies. UFMC with the use of adaptive filter (UFMC -FSK) is offered as a revolutionary technique in this study. The filter designed and used to transport information through the index modulation technique. As a result, each UF-OFDM sub band's used filter is chosen, so the data rate is enhanced according to a filter configured depending on original input data bits. The combined Maximum-likelihood (ML) decision metric for each sub band that is calculated at the receiver. Each sub band has a filter as well as data symbols that provide the minimal metric for making decisions are discovered. Furthermore, the bit error rate and power spectrum density are enhanced over the UF-OFDM technique, however there is some trade-off. Overall, the proposed system outperform typical UF-OFDM. Matlab simulations are used to assess the performance of the Adaptive UFMC system.
Cite This Paper
Mohammed H. Ali, Noora H. Sherif, "Design and Implementation of Adaptive Universal Filtered Multi Carrier for 5G and Beyond", International Journal of Computer Network and Information Security(IJCNIS), Vol.14, No.6, pp.14-22, 2022. DOI:10.5815/ijcnis.2022.06.02
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