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A low-complexity transceiver scheme for joint DFT pre-coded DWT SC-FDMA NOMA system under dissimilar power allocation strategies.
- Source :
-
Sādhanā: Academy Proceedings in Engineering Sciences . Sep2024, Vol. 49 Issue 3, p1-13. 13p. - Publication Year :
- 2024
-
Abstract
- The competence of Non-Orthogonal Multiple Access (NOMA) to provide improved spectrum efficiency, support massive network elements, and low latency services make it attractive to Multiple Access (MA) technology for next-generation wireless networks. Single-Carrier Frequency Division Multiple Access (SC-FDMA) is an optimal technique in 4G wireless communication to enhance spectrum efficiency and user capacity. The amalgamation of SC-FDMA with NOMA can become a better choice for wireless communication for 5G and Beyond 5G (B5G). Discrete Wavelet Transforms (DWT) have been a better choice for improving the system's performance due to its outstanding orthogonality and spectral confinement characteristics. This study proposes a transceiver architecture that uses joint Discrete Fourier Transform (DFT) and DWT to outperform existing NOMA systems in terms of Bit Error Rate (BER). The transceiver architecture is symbolized as a joint DFT precoded DWT (JDPD) SC-FDMA NOMA System. Furthermore, we propose a Joint Low Complexity Regularized Zero forcing (JLC RZF) for JDPD SC-FDMA NOMA system to enhance the BER with low complexity. In order to illustrate the superiority of the proposed system over multipath channels, the system performance over a range of Carrier Frequency Offset (CFO) values and power allocation scenarios are also examined. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02562499
- Volume :
- 49
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Sādhanā: Academy Proceedings in Engineering Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 178527544
- Full Text :
- https://doi.org/10.1007/s12046-024-02548-2