5G UFMC Scheme Performance with Different Numerologies

Sakkas, Lambros; Stergiou, Eleftherios; Tsoumanis, Georgios; Angelis, Constantinos T.

doi:10.3390/electronics10161915

Cited by 8 publications

(5 citation statements)

References 13 publications

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“…Proposed Binomial filter Based FBMC can be used in Digital Video Broadcasting (DVB) since Binomial filter based FBMC will meet the performance requirements of DBV in a better way. Applications of UFMC in Machine to Machine and car-to-car communications are discussed in [ 33 ]. Since the performances of FPBF based UFMC is better than those of Chebyshev filter based UFMC, the proposed FPBF based UFMC can be applied to Machine to Machine as well as car-to-car communications.…”

Section: Discussionmentioning

confidence: 99%

Comparison of different New Radio (NR) waveforms for wireless communications

Baki

2023

PLoS ONE

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New Radio (NR) waveforms of existing wireless communication systems need further improvement in order to support future wireless communications. NR is the radio interface technology proposed by the 3rd Generation Partnership Project (3GPP) for 5G. Prototype Filter (PF) of NR plays a vital role in performance improvement of wireless systems. NR waveforms can adapt in a better way to different channel conditions. Some of the NR filtering techniques are Filtered-OFDM (F-OFDM), Filter Bank Multi-Carrier (FBMC), and Universal Filtered Multi-Carrier (UFMC). NR waveforms require performance improvement when high reliability, massive connectivity, lower power consumption, and time-critical applications are required. Areas of improvement are Power Spectral Density (PSD), Bit Error Rate (BER), Signal to Interference Ratio (SIR), Doppler Diversity, and Peak to Average Power Ratio (PAPR). This paper compares different performance parameters of Filtered-OFDM, FBMC, and UFMC using existing proto-type filters and novel proto-type filters. The novel and better PFs, described in the paper, were proposed first time by the authors and his research group. Proposed novel prototype filters for FBMC, Filtered-OFDM, and UFMC are respectively Binomial filter and Fractional Powered Binomial Filter (FPBF). With FPBF based OFDM, PSD improvement was 97.5 dB, and BER improvement was 0.07 at 0 dB SNR. With Binomial filter based FBMC, OOBE improvement was 19.7 dB and BER improvement was 0.03 at 0 dB SNR. PAPR improvement with Binomial filter based FBMC was 1.16 dB at 64-QAM and 1.1 dB at 256-QAM. With FPBF based UFMC, improvement of interference level was 122 dB within 3rd~52th sub-bands due to 1st sub-band. BER improvement was 0.09 at 0 dB SNR. SIR improvement was 5. 27 dB with 15 KHz sub-carrier spacing and 16.55 dB with 30 KHz sub-carrier spacing of UFMC. Novel NR filters, discussed in the paper, are good candidates for future 6G wireless systems.

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Section: Discussionmentioning

confidence: 99%

Comparison of different New Radio (NR) waveforms for wireless communications

Baki

2023

PLoS ONE

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“…Sakkas et al [8] conducted a comprehensive investigation into the UFMC system, specifically focusing on its design aspects with regard to BER performance in relation to sub band filter length. This paper explored the enhancement of UFMC performance in parallel processing environments by investigating the impact of employing large FFT and M-QAM values.…”

Section: Literature Reviewmentioning

confidence: 99%

“…This paper explored the enhancement of UFMC performance in parallel processing environments by investigating the impact of employing large FFT and M-QAM values. The increased computational complexity associated with larger FFT and M-QAM values can be mitigated through multiprocessing techniques, resulting in overall performance improvement [8].…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of Filtered Multicarrier Modulation Techniques Using Different Windows for 5G and Beyond Wireless Systems

Debnath,

Ahmed,

Alam

2024

Wireless Communications and Mobile Computing

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In contemporary wireless communication systems, multicarrier modulation schemes have become widely adopted over single-carrier techniques due to their improved capacity to address challenges posed by multipath fading channels, leading to enhanced spectral efficiency. Orthogonal frequency division multiplexing (OFDM), a prevalent multicarrier scheme in 4G, is favored for its ease of implementation, interference resilience, and high data rate provision. But it falls short of meeting the requirements for 5G and beyond due to limitations such as out-of-band (OOB) emissions and cyclic prefixes. This paper introduces the filter bank multicarrier (FBMC) and universal filtered multicarrier (UFMC) with quadrature amplitude modulation (QAM) and phase shift keying (PSK) waveforms through Additive White Gaussian Noise channel (AWGN), Rayleigh fading channel and Rician channel. The objective of this paper is to enhance the performance of UFMC with reduced complexity through the new filtering approach for achieving optimal outcomes. The proposed scheme, incorporating Tukey filtering technique, demonstrates superior performance in reducing peak-to-average power ratio (PAPR) and improving bit error ratio (BER) compared to the original UFMC signal without necessitating additional power increments. Specifically, the UFMC system with Tukey filtering achieves a notable net gain of 5 dB. Simulation results demonstrate that utilizing various filter types in FBMC and UFMC systems, combined with QAM modulation, significantly reduces OOB emissions compared to conventional systems. In aspect to BER, Tukey window showed almost 10−6 at 15 dB SNR in UFMC which is better than FBMC.

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“…Due to the prevailing OFDM channel estimation techniques during the research, this section presents the OFDM fundamentals to provide a look inside this modulation technique and insights into the following sections. Regardless, we recommend looking inside the content in [2,3,9,11,12,52] and the references therein for those also interested in reviewing the fundamentals of the FBMC, GFDM, and UFMC modulations.…”

Section: Ofdm Principlesmentioning

confidence: 99%

Artificial intelligence for channel estimation in multicarrier systems for B5G/6G communications: a survey

Boas

Silva

Figueiredo

et al. 2022

J Wireless Com Network

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Multicarrier modulation allows for deploying wideband systems resilient to multipath fading channels, impulsive noise, and intersymbol interference compared to single-carrier systems. Despite this, multicarrier signals suffer from different types of distortion, including channel noise sources and long- and short-term fading. Consequently, the receiver must estimate the channel features and compensate it for data recovery based on channel estimation techniques, such as non-blind, blind, and semi-blind approaches. These techniques are model-based and designed with accurate mathematical channel models encompassing their features. Nevertheless, complex environments challenge accurate mathematical channel estimation modeling, which might neither be accurate nor correspond to reality. This impairment decreases the system performance due to the channel estimation accuracy loss. Fortunately, (AI) algorithms can learn the relationship among different system variables using a model-driven or model-free approach. Thereby, AI algorithms are used for channel estimation by exploiting its complexity without unrealistic assumptions, following a better performance than conventional techniques under the same channel. Hence, this paper comprehensively surveys AI-based channel estimation for multicarrier systems. First, we provide essential background on conventional channel estimation techniques in the context of multicarrier systems. Second, the AI-aided channel estimation strategies are investigated using the following approaches: classical learning, neural networks, and reinforcement learning. Lastly, we discuss current challenges and point out future research directions based on recent findings.

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5G UFMC Scheme Performance with Different Numerologies

Cited by 8 publications

References 13 publications

Comparison of different New Radio (NR) waveforms for wireless communications

Comparison of different New Radio (NR) waveforms for wireless communications

Analysis of Filtered Multicarrier Modulation Techniques Using Different Windows for 5G and Beyond Wireless Systems

Artificial intelligence for channel estimation in multicarrier systems for B5G/6G communications: a survey

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