Peak-to-Average Power Ratio of Multicarrier Faster-Than-Nyquist Signals: Distribution, Optimization and Reduction

Liu, Aijun; Peng, Siming; Li, Song; Liang, Xiaohu; Wang, Ke; Zhang, Qingshuang

doi:10.1109/access.2018.2809658

Cited by 16 publications

(17 citation statements)

References 37 publications

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“…In this section, we briefly describe the SLM-AS method. For the detailed description, readers can refer to [23]. The SLM scheme reduces the PAPR via generating multiple signal sequences and selecting the one with lowest PAPR for transmission.…”

Section: Slm-as Methodsmentioning

confidence: 99%

“…The general formulation of SLM-AS can be given bŷ In this paper, we do not focus on the search algorithm. Therefore, the exhaustive search is adopted in the optimization in SLM-AS, which is same to [23].…”

Section: Slm-as Methodsmentioning

confidence: 99%

“…In consideration of existence of time and frequency packing, conventional SLM shows poor performance in MFTN systems. In order to address this problem, in [23], a SLM scheme combined with alternative signal (AS) was proposed by A. Liu, et al For the convenience of description, we will call it SLM-AS in the following parts of the paper. In SLM-AS method, to approximate the continuous time MFTN signaling, four times oversampling (i.e., J = 4) is used to increase the resolution of discrete time MFTN signaling.…”

Section: Introductionmentioning

confidence: 99%

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Low-Complexity Selective Mapping Methods for Multicarrier Faster-Than-Nyquist Signaling

2020

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Multicarrier faster-than-Nyquist (MFTN) signaling is a high spectral efficiency transmission scheme, which is promising in the future communication. One of the major problems of MFTN signaling is high peak-to-average power ratio (PAPR). Therefore, PAPR reduction is necessary in MFTN systems. Generally, four times oversampling is used in PAPR reduction methods for MFTN signaling to make the discrete time MFTN signaling approximate the peak of continuous time MFTN signaling. However, generating four times oversampled discrete time MFTN signaling will increase the computational complexity of PAPR reduction methods. In this paper, we propose three new low-complexity PAPR reduction methods based on selective mapping (SLM) for MFTN signaling. The first step of proposed methods is using discrete time MFTN signaling with oversampling factor lower than four as reference discrete signal. Then, three new methods utilize picking, reconstructing, and filtering, respectively, to acquire the peak power of four times oversampled MFTN signaling. It is shown that the proposed methods can significantly reduce the computational complexity while almost without PAPR reduction performance loss. INDEX TERMS Multicarrier faster-than-Nyquist (MFTN), peak-to-average power ratio (PAPR), selective mapping (SLM), low-complexity. BIAO CAI received the B.S. degree in communication engineering and the M.S. degree in communications and information system from the College of Communications Engineering, PLA

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Section: Slm-as Methodsmentioning

confidence: 99%

Section: Slm-as Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Low-Complexity Selective Mapping Methods for Multicarrier Faster-Than-Nyquist Signaling

2020

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“…Moreover, we assume that, for a given link, the received SNR is the maximal SNR obtained with the PA used at the transmitter side in linear regime. Under this assumption, we deduce that the received SNR, defined in (8), is such that:…”

Section: E Penalized Received Snrmentioning

confidence: 99%

“…More recently, FTN signaling has known a regain of attention in [3], [4], [5] and references therein. The PAPR behavior of FTN signaling, which has been studied in [6], [7] and [8], is much more different than those obtained with classical Nyquist links. Unfortunately, none of the previous analysis compares FTN and Nyquist signaling through a multi-criteria approach, which may limit the operational use of FTN signaling.…”

Section: Introductionmentioning

confidence: 99%

Multi-criteria Performance Analysis of Faster Than Nyquist Signaling

Petitpied

Traverso

Chevalier

et al. 2018

2018 25th International Conference on Telecommunications (ICT)

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In this paper we propose a multi-criteria comparison of faster than Nyquist (FTN) against Nyquist signaling. To conduct this study we consider uncoded links and maximum likelihood receivers, we fix both the spectral efficiency (SE) and the bandwidth of the links, and we compare the quality of the latter for a given received signal to noise ratio (SNR) taking into account the peak-to-average power ratio (PAPR). Indeed, this metric directly affects the power amplifier (PA) efficiency and depends on the considered modulation and shaping filter. In addition, as already mentioned in the literature, the PAPR varies significantly with the compression factor of FTN signaling. Based on this, we built a penalized SNR expression in order to consider the PAPR effect and offer a clear representation to fairly compare different FTN and Nyquist signaling. Through this multi-criteria approach, required for practical applications, we show that the best waveforms are FTN. As an example, FTN links may provide a gain up to 2.5 dB for 2.5 bits/s/Hz for a bit error rate (BER) of 10 −4 compared to the best Nyquist link.

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A novel PTS: grey wolf optimizer-based PAPR reduction technique in OFDM scheme for high-speed wireless applications

Rao

Malathi

2018

Soft Comput

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Peak-to-Average Power Ratio of Multicarrier Faster-Than-Nyquist Signals: Distribution, Optimization and Reduction

Cited by 16 publications

References 37 publications

Low-Complexity Selective Mapping Methods for Multicarrier Faster-Than-Nyquist Signaling

Low-Complexity Selective Mapping Methods for Multicarrier Faster-Than-Nyquist Signaling

Multi-criteria Performance Analysis of Faster Than Nyquist Signaling

A novel PTS: grey wolf optimizer-based PAPR reduction technique in OFDM scheme for high-speed wireless applications

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