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Software Design Analysis and Implementation of OFDMA and Its Computing Architecture Analysis for 5G/4G eNodeB

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Abstract

Mobile communication applications trends are towards 4G/5G cellular network technologies. These applications need a higher data rate for uplink and downlink data transmissions along with lower bit error rates and latency with improved spectral efficiency. The design and implementation of the OFDMA downlink algorithm for 4G/5G eNodeBs is described in this paper. The receiver design is implemented with the least square channel estimation and zero forcing the algorithm to overcome channel limitations caused by multipath propagation delay, AWGN noise, and Doppler shift. QPSK, 16-QAM, and 64-QAM modulation methods are utilised for system validation using SNR and BER. The system design and implementation are developed. Using the Xilinx tool with Zynq Cortex-A53 and RF agile transceiver for eNodeB constellation plots, BER and mobility curves are obtained for various channel models. From the simulation results and the design implementation it is concluded that, by incorporating the least square channel estimation and zero forcing channel equalization method, the bit error rate is reduced. The data rate achieved in this proposed design is 10 Gbps. In future design an embedded hardware-software co-design and more focus on reconfigurability implementation to be performed for the algorithms of the systems.

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  1. Department of Electronics and Communications Engineering, Oriental University, Indore, MP, India

    Sanket N. Dessai & Hemant Patidar

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  1. Sanket N. Dessai
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Dessai, S.N., Patidar, H. Software Design Analysis and Implementation of OFDMA and Its Computing Architecture Analysis for 5G/4G eNodeB. Wireless Pers Commun 130, 1371–1397 (2023). https://doi.org/10.1007/s11277-023-10335-1

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