Performance Improvement of OFDMA Systems Through Wireless Communication Channels

El_Tokhy, Mohamed S.; Ali, Elsayed H.; Kasban, H.

doi:10.1007/s11277-022-09472-w

Cited by 1 publication

(1 citation statement)

References 55 publications

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“…Although CP is well known method to reduce intersymbol interference, however F-OFDM proved its flexible form with lower PAPR, making it perfect for 5G wireless applications. Performance of OFDMA has been studied by authors in [11] by minimizing value of PAPR and BER using signal recovery algorithm. Comprehensive study regarding multiple access and multi carrier from 1G until 5G has been addressed by authors in [12].…”

Section: F-ofdmamentioning

confidence: 99%

Reduction of Papr Using Asymmetric Numeral System Qc-LDPC With Huffman and Arithmetic Coding for F-Ofdma System

Idris

Arham²,

Sulong³

et al. 2022

AEJ

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As modern wireless communication systems move towards 5G implementation, the system must provide sophisticated and ubiquitous service and flexibility. Therefore, Filtered Orthogonal Frequency Division Multiple Access (F-OFDMA) is one of the most suitable modulation techniques used in 5G systems to achieve efficient and reliable wireless communication. Other than that, F-OFDMA also has good quality rather than OFDM since it provides a better result of high side lobes and enlarges the scale of the spectrum analyzer. However, one of the significant problems in the F-OFDMA system is the high peak-to-average power ratio (PAPR), affecting the system's overall performance and causing high transmit power at the transmitter. In this paper, combination of Arithmetic Coding (AC) and Huffman coding (HC) with Asymmetric Numeral Systems (ANS) provide better performance for PAPR as well as bit error rate (BER) in F-OFDMA. Both AC and HC are proposed to combine with ANS and Quasi-Cyclic Low-Density Parity Check (QC-LDPC) since it provides a good result to defeat the high PAPR. BER and PAPR performance were compared for the AC and HC with ANS QC-LDPC. Based on the results, ANS-AC-QCLDPC proved as the best joint method has 35.25% improvement for PAPR while BER has 89.87%. This research also justified that ANS with Arithmetic-QCLDPC and Huffman-QCLDPC give better BER results as well.

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Section: F-ofdmamentioning

confidence: 99%