Study and Comparative Analysis of OFDM and UFMC Modulation Schemes

Vaigandla, Karthik Kumar; Siluveru, Mounika; Karne, RadhaKrishna

doi:10.55529/jecnam.32.41.50

Cited by 9 publications

(8 citation statements)

References 12 publications

(8 reference statements)

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“…This framework is designed to keep the transmitted signal linear and lower the bit error rate, which lowers PAPR. The signal that has to be modulated will first be routed through a QAM modulator, where it will be phase-shifted by 90 degrees and organised orthogonally [13][14]. The QAM modulator output is sent via an inverse fast Fourier transform, which converts the signal from the frequency domain to the time domain.…”

Section: Papr Mitigation Through Clipping and Windowingmentioning

confidence: 99%

Evaluation of OFDM system in terms of PAPR and BER using PAPR Reduction Techniques : Windowing and Clipping

Siluveru,

Nanda,

Kesoju

2024

BJN

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The issue of transferring signals in a non-intrusive and efficient manner is highly intriguing. Consequently, the utilisation of the Orthogonal Frequency Division Multiplexing (OFDM) transmission technology is employed due to its enhanced resilience against multipath fading and its ability to achieve better efficiency compared to alternative wireless communication methods. Although the PAPR issue offers certain benefits, it poses undesirable consequences for OFDM, leading to a significant decrease in data transmission rate. Consequently, the mitigation of peak-to-average power ratio (PAPR) issues leads to an improvement in the quality of service. The reduction of PAPR can be achieved by the implementation of clipping and windowing techniques. These approaches arrange the signal into discrete levels of similar magnitude and apply clipping to minimise the bit error rate (BER), resulting in a drop in PAPR. The proposed approach is implemented using the MATLAB software.

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Section: Papr Mitigation Through Clipping and Windowingmentioning

confidence: 99%

Evaluation of OFDM system in terms of PAPR and BER using PAPR Reduction Techniques : Windowing and Clipping

Siluveru,

Nanda,

Kesoju

2024

BJN

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“…Blockchain payment services are a brand-new payment processing system that uses blockchain technology to make payments easier [32]. Blockchain is a distributed ledger technology that makes transactions safe, transparent, and unalterable [33]. Due to its ability to lower costs, increase efficiency, and decrease fraud, it is the perfect choice for payment processing.…”

Section: Blockchain Payment Servicesmentioning

confidence: 99%

Blockchain Payment Services in the Hospitality Sector: The Mediating Role of Data Security on Utilisation Efficiency of the Customer

Dhiraj,

Kumar,

Rani

et al. 2023

Data

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Blockchain technology has the potential to completely transform the hospitality sector by offering a safe, open, and effective method of payment. Increased customer utilisation efficiency may result from this. This study looks into how blockchain payment methods affect hotel customers’ intentions to stay loyal by devising four hypotheses. A questionnaire was specifically created and self-administered for this study as a data-gathering tool and distributed to hotel customers. The I.B.M. SPSS and Amos software packages were used to analyse the data of the 301 valid responses. Findings show that hospitality customers may use blockchain payment services if the customer is satisfied with the data security of this payment system. The study also highlighted that customer data security mediated the association between utilisation efficiency and blockchain payment systems. Blockchain payment services can affect visitors’ intentions to stay loyal by impacting data security and consumer happiness. Results suggest that blockchain payment systems can be useful for hospitality firms looking to increase client utilisation efficiency. Blockchain can simplify visitor booking and payment processes by providing a safe, open, and effective transacting method. This may result in a satisfying encounter that visitors are more inclined to recall and repeat.

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“…In order to preserve orthogonality, it is necessary for T to be the reciprocal of the subcarrier spacing. The principles employed in the straightforward analogue OFDM implementation may be expanded to the digital realm through the utilization of a mix of FFT and IFFT techniques in digital signal processing [18]. The significance of these transformations lies in their relevance to OFDM, since they serve the purpose of transferring digitally modulated input data (data symbols) onto orthogonal subcarriers.…”

Section: System Modelmentioning

confidence: 99%

Performance Analysis of OFDM under Rician Fading Channel using Various Digital Modulation Methods

Bharadwaja,

Swagath,

Charan

et al. 2023

IJRISE

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The widespread use of mobile platforms has resulted in significant challenges related to power constraints and the Quality of Service(QoS) provided by Orthogonal Frequency Division Multiplexing (OFDM) systems. The examination of Bit Error Rate (BER) and Signal-to-Noise Ratio (SNR) is of significant importance in comprehending and enhancing the design of OFDM systems. The utilization of wireless technology in everyday life has experienced a gradual and consistent growth. OFDM is a prevalent technique for multicarrier transmission, which effectively utilizes parallel data streams. OFDM is considered an effective technique for achieving high-speed digital transmission over channels that exhibit time-varying characteristics. OFDM has several advantages compared to single carrier modulation. These include enhanced resistance to impulsive interference, increased spectral density, improved resilience to channel fading, greater tolerance to multipath effects, and reduced computational complexity. Nevertheless, OFDM has some notable challenges that hinder its practical use in telecommunications networks. Several examples of these are packet loss, bit loss, peak-to-average power ratio (PAPR), BER, and SNR. This research aims to investigate the BER and SNR performance of OFDM in the presence of Rician Fading Channel. The study also explores the impact of different modulation techniques on the performance of OFDM.

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Study and Comparative Analysis of OFDM and UFMC Modulation Schemes

Cited by 9 publications

References 12 publications

Evaluation of OFDM system in terms of PAPR and BER using PAPR Reduction Techniques : Windowing and Clipping

Evaluation of OFDM system in terms of PAPR and BER using PAPR Reduction Techniques : Windowing and Clipping

Blockchain Payment Services in the Hospitality Sector: The Mediating Role of Data Security on Utilisation Efficiency of the Customer

Performance Analysis of OFDM under Rician Fading Channel using Various Digital Modulation Methods

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