Genetic Algorithm Based Bilayer PTS Scheme for Peak-to-Average Power Ratio Reduction of FBMC/OQAM Signal

Lv, Siying; Zhao, Junhui; Yang, Lihua; Li, Qiuping

doi:10.1109/access.2020.2967846

Cited by 20 publications

(8 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Substituting (19) and ( 20) into (7), the estimated demodulated symbol ,m k C of the mth block on the kth subcarrier is given as , ,…”

Section: N N a G T Jb G T T C A G T J B G T T C S T A G T Jb G T T C A G T J B G T T Cmentioning

confidence: 99%

“…The other is employing new low PAPR FBMC (LP-FBMC) structure based on discrete Fourier transform (DFT) spreading under special identically time-shifted multicarrier (ITSM) condition. Especially, based on the former kind of methods, selected mapping (SLM) [5][6][7][8][9][10] and partial transmit sequences (PTS) [11][12][13][14][15][16][17][18][19] schemes were proposed with requiring side information (SI) transmission. Although they can achieve good PAPR performance, the complexity is usually high and the correct transmission of SI is critical for data demodulation at the receiver.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cyclic Shift Based Tone Reservation PAPR Reduction Scheme with Embedding Side Information for FBMC-OQAM Systems

2021

KSII TIIS

View full text Add to dashboard Cite

The tone reservation (TR) scheme is an attractive method to reduce peak-to-average power ratio (PAPR) in the filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) systems. However, the high PAPR of FBMC signal will severely degrades system performance. To address this issue, a cyclic shift based TR (CS-TR) scheme with embedding side information (SI) is proposed to reduce the PAPR of FBMC signals. At the transmitter, four candidate signals are first generated based on cyclic shift of the output of inverse discrete Fourier transform (IDFT), and the SI of the selected signal with minimum peak power among the four candidate signals is embedded in sparse symbols with quadrature phase-shift keying constellation. Then, the TR weighted by optimal scaling factor is employed to further reduce PAPR of the selected signal. At the receiver, a reliable SI detector is presented by determining the phase rotation of SI embedding symbols, and the transmitted data blocks can be correctly demodulated according to the detected SI. Simulation results show that the proposed scheme significantly outperforms the existing TR schemes in both PAPR reduction and bit error rate (BER) performances. In addition, the proposed scheme with detected SI can achieve the same BER performance compared to the one with perfect SI.

show abstract

“…Substituting (19) and ( 20) into (7), the estimated demodulated symbol ,m k C of the mth block on the kth subcarrier is given as , ,…”

Section: N N a G T Jb G T T C A G T J B G T T C S T A G T Jb G T T C A G T J B G T T Cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cyclic Shift Based Tone Reservation PAPR Reduction Scheme with Embedding Side Information for FBMC-OQAM Systems

2021

KSII TIIS

View full text Add to dashboard Cite

show abstract

“…. , N 1} generated OFDM signals, which are chosen from phase-shift-keying (PSK) or quadrature amplitude modulation (QAM) constellation mapping, T represents OFDM signal duration, f = 1/T is the frequency interval between subcarrier [11].…”

Section: Ofdm Systemmentioning

confidence: 99%

Hybrid Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction

Hu¹,

Lu²,

Jin³

et al. 2021

Preprint

View full text Add to dashboard Cite

Partial transmit sequence (PTS) technique is a fairly suitable scheme to mitigate the high peak-to-average power ratio (PAPR) problem inherent in 5G multicarrier system-especially considering high-order QAM modulation design. However, the high computational complexity level and the speed of the convergence for optimizing the phases of the transmitting signal restricts this technique in practical applications. In this paper, a low-complexity frequency domain evaluated PTS (F-PTS) based on spacing multi-objective (SMO) processing algorithm is proposed to reduce the PAPR values. The PAPR performance are accurately predicted in terms of modifying relative dispersion in the frequency domain. As a result, the complexity of searching the optimal phase factors and IFFT computing is simplified. Moreover, frequency domain and time domain evaluating PTS (FTD-PTS) is employed to search the optimal solution within reasonable complexity. Simulation results verify that the F-PTS scheme can obtain well secondary peaks with lower computational complexity, and the FTD-PTS scheme effectively reduces PAPR with a faster convergence speed.

show abstract

“…For signals to be properly received at the receivers, adequate power is used to transmit the signal by all the radio communication transmitters using HPAs. The HPAs are often located close to the region of saturation so that they can achieve high levels of efficiency, but this causes the introduction of out-of-band spectral regrowth [6]. Another cause of huge change in signals, is a rapid sidelobe rate reduction, and this in turn causes the introduction of in-band distortions by the HPAs, thereby indirectly resulting in higher PAPR [7].…”

Section: Introductionmentioning

confidence: 99%

New 5G Kaiser-Based Windowing to Reduce Out of Band Emission

Hammoodi¹,

Audah²,

Al-Jobouri³

et al. 2022

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

OFDM based waveforms are considered as the main part of the latest cellular communications standard (namely 5G). Many inherited problems from the OFDM-Based LTE are still under investigation. Getting rid of the out of band emissions is one of these problems. Ensuring low out of band emission (OOBE) is deemed as one of the most critical challenges to support development of future technologies such as 6G and beyond. Universal Filtered Multi Carrier (UFMC) has been considered as one of the candidate waveforms for the 5G communications due to its robustness against Inter Carrier Interference (ICI) and the Inter Symbol Interference (ISI). It is also a preferred option because it is the most appropriate for low latency scenarios. In this paper, a novel approach is proposed that makes use of modified Kaiser-Bessel filter-based pulse windowing instead of standard Dolph-Chebyshev filter for UFMC based waveform. The aim of proposing the new approach is to enable the reduction of spectral leakage into nearby sub-bands. A comprehensive study for the modified Kaiser-Bessel filters is performed and the results are presented in terms of several Key Performance Indicators (KPIs). Based on the results of the simulation, the UFMC Kaiser-Hankel window demonstrated lower sidebands and better power spectral density, when compared with the traditional Orthogonal frequency-division multiplexing (OFDM) and UFMC as well as the normal UFMC Kaiser window. In addition, the real test for the kaiser window with 5G waveform is lower OOBE than conventional 5G waveform (CP-OFDM and UFMC). The OOBE reduction of 31% of the Kaiser vs. the Dolph-Chebyshev filter, 68% of Kaiser Hankel over the Dolph-Chebyshev, and 20% of Kaiser Hankel over Kaiser filter have been reported in this paper. The Power Spectral Density has been improved accordingly.

show abstract

Genetic Algorithm Based Bilayer PTS Scheme for Peak-to-Average Power Ratio Reduction of FBMC/OQAM Signal

Cited by 20 publications

References 34 publications

Cyclic Shift Based Tone Reservation PAPR Reduction Scheme with Embedding Side Information for FBMC-OQAM Systems

Cyclic Shift Based Tone Reservation PAPR Reduction Scheme with Embedding Side Information for FBMC-OQAM Systems

Hybrid Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction

New 5G Kaiser-Based Windowing to Reduce Out of Band Emission

Contact Info

Product

Resources

About