@Article{iasc.2022.021984,
AUTHOR = {C. Ajitha, T. Jaya},
TITLE = {Field Programmable Gate Arrays (FPGA) Based Computational Complexity Analysis of Multicarrier Waveforms},
JOURNAL = {Intelligent Automation \& Soft Computing},
VOLUME = {34},
YEAR = {2022},
NUMBER = {2},
PAGES = {1033--1048},
URL = {http://www.techscience.com/iasc/v34n2/47619},
ISSN = {2326-005X},
ABSTRACT = {Multicarrier waveforms with enhanced spectral efficiency, low latency, and high throughput are required for 5G wireless networks. The Orthogonal Frequency Division Multiplexing (OFDM) method is well-known in research, but due to its limited spectral efficiency, various alternative waveforms are being considered for 5G systems. In the recent communication world, NOMA (non-orthogonal multiple access) plays a significant part due to its wider transmission of data with less bandwidth allocation. Even if a high data rate can be attained, the transmission problem will arise due to the spread of multiple paths. In order to reduce complexity and area utilization, a novel PL-based FWFT (Fast walsh hadamard fourier transform) technique is proposed and implemented in the VLSI architecture. To achieve a high-performance system, the main concept of pass transistor logic (PL) with VLSI implementation is to diminish the size and power consumption. Finally, the performance of the proposed FWFT/ IFWFT implementation has been evaluated. For FPGA’s 16-point FWFT, the number of transistors decreased by 21% and the total power required was reduced by 5.5%. The same implementation for 34 transistor-pass-logic customs and power consumption is 2.764 mW with a latency of 78.256 ns. As a consequence, the proposed system achieves low power, area and low complexity system that can enhance the function of the multicarrier waveform systems.},
DOI = {10.32604/iasc.2022.021984}
}