Evaluation of Clipping Based Iterative PAPR Reduction Techniques for FBMC Systems

Kollár, Zsolt; Varga, L.; Horváth, Balint; Bakki, Péter; Bito, J.

doi:10.1155/2014/841680

Cited by 41 publications

(31 citation statements)

References 27 publications

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“…The OQAM symbols are then fed into the FBMC modulator, where they are filtered and modulated onto their respective subcarriers. The output of the FBMC modulator at sample n can be written as [17] …”

Section: Fbmc-oqammentioning

confidence: 99%

“…The MBJO method provides good results; however, the complexity of utilizing a trellis for the optimization of the ideal PTS sequence would increase computational complexity and may make this method infeasible in practice. Clipping-based PAPR reduction is proposed in [12]. The results appear promising; however, the performance needs to be verified in a realistic scenario.…”

Section: Introductionmentioning

confidence: 99%

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PAPR reduction in FBMC using an ACE-based linear programming optimization

Neut

Maharaj

Lange

et al. 2014

EURASIP J. Adv. Signal Process.

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This paper presents four novel techniques for peak-to-average power ratio (PAPR) reduction in filter bank multicarrier (FBMC) modulation systems. The approach extends on current PAPR reduction active constellation extension (ACE) methods, as used in orthogonal frequency division multiplexing (OFDM), to an FBMC implementation as the main contribution. The four techniques introduced can be split up into two: linear programming optimization ACE-based techniques and smart gradient-project (SGP) ACE techniques. The linear programming (LP)-based techniques compensate for the symbol overlaps by utilizing a frame-based approach and provide a theoretical upper bound on achievable performance for the overlapping ACE techniques. The overlapping ACE techniques on the other hand can handle symbol by symbol processing. Furthermore, as a result of FBMC properties, the proposed techniques do not require side information transmission. The PAPR performance of the techniques is shown to match, or in some cases improve, on current PAPR techniques for FBMC. Initial analysis of the computational complexity of the SGP techniques indicates that the complexity issues with PAPR reduction in FBMC implementations can be addressed. The out-of-band interference introduced by the techniques is investigated. As a result, it is shown that the interference can be compensated for, whilst still maintaining decent PAPR performance. Additional results are also provided by means of a study of the PAPR reduction of the proposed techniques at a fixed clipping probability. The bit error rate (BER) degradation is investigated to ensure that the trade-off in terms of BER degradation is not too severe. As illustrated by exhaustive simulations, the SGP ACE-based technique proposed are ideal candidates for practical implementation in systems employing the low-complexity polyphase implementation of FBMC modulators. The methods are shown to offer significant PAPR reduction and increase the feasibility of FBMC as a replacement modulation system for OFDM.

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Section: Fbmc-oqammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PAPR reduction in FBMC using an ACE-based linear programming optimization

Neut

Maharaj

Lange

et al. 2014

EURASIP J. Adv. Signal Process.

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“…Various PAPR reduction techniques are Clipping & filtering [4][5][6][7][8], , selective mapping [8][9][10][11][12][13],Partial transmit sequence [12][13][14][15] , nonlinear companding,Tone Injection, Tone Reservation [16], Active Constellation [17] and coding techniques [25][26]. Although many techniques found in the literature to reduce PAPR ratio in OFDM systems .…”

Section: Introductionmentioning

confidence: 99%

PAPR Reduction in OFDM Systems using RCF and SLM Techniques

Manjula¹,

Muralidhara²

2017

IJCA

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Orthogonal Frequency Division Multiplexing is considered as one of the prominent technology for 4G communication to achieve high data rate, spectral efficiency over multipath fading channel. However one of the major drawbacks of OFDM system is high PAPR. Repetitive clipping and filtering(RCF) and selective mapping (SLM) techniques being considered as simple and less complex compare to other techniques, both techniques are analysed and simulated result will give significant reduction in PAP ratio.

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“…OFDM 변조의 경우, 높은 OOB(Out-of-Band) 전 력을 가지고 있어 각 어플리케이션 스펙트럼 사이에 넓 은 보호 대역을 요구하지만 [9] , 부반송파를 그룹 필터링 기법을 사용하는 UFMC나 개별 필터링하는 FBMC 변조 의 경우, OOB의 전력이 낮기 때문에 보다 좁은 보호대역 을 요구하며 [10]～ [13] , 따라서 행하고, 필터링된 신호들을 합쳐서 최종 전송을 위한 신 호를 생성한다 [10] . FBMC는 개별 부반송파를 필터링하기 위하여 IDFT 연산 후 PPN 구조를 이용, 지연(delay)과 합 (sum) 연산을 수행하여 최종 변조신호를 생성한다 [11] .…”

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Combination System Design of 5G Candidate Modulation and Full Duplex Communication for the Spectrum Efficiency Enhancement

Ryu²

2016

The Journal of Korean Institute of Electromagnetic Engineering

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In this paper, we propose and design a SSD(Simultaneous Single band Duplex) system using 5G(Generation) candidate modulations. Especially, we consider HPA(High Power Amplifier) nonlinearity in the proposed system. And then, we evaluate and analyze performance of the proposed system. As simulation results, performance of SSD-OFDM(Orthogonal Frequency Division Multiplexing), SSD-FMC (Universal Filtered Multi-Carrier), and SSD-FBMC(Filter Bank Multi-Carrier) is severely degraded by HPA nonlinearity. However, performance of SSD-OFDM, SSD-UFMC, and SSD-FBMC is similar in the same condition. That is, OFDM, UFMC, and FBMC have a similar PAPR(Peak to Average Power Ratio) characteristic. Finally, we can confirm that the proposed SSD system can not cancel(SI) self-interference effectively by strong HPA nonlinearity. That is, Reducing PAPR is important in order to avoid effect of HPA nonlinearity in the proposed SSD system.

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Evaluation of Clipping Based Iterative PAPR Reduction Techniques for FBMC Systems

Cited by 41 publications

References 27 publications

PAPR reduction in FBMC using an ACE-based linear programming optimization

PAPR reduction in FBMC using an ACE-based linear programming optimization

PAPR Reduction in OFDM Systems using RCF and SLM Techniques

Combination System Design of 5G Candidate Modulation and Full Duplex Communication for the Spectrum Efficiency Enhancement

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