A Semi-Blind SLM Scheme for PAPR Reduction in OFDM Systems With Low-Complexity Transceiver

Ji, Jinwei; Ren, Guangliang; Zhang, Huining

doi:10.1109/tvt.2014.2345262

Cited by 47 publications

(26 citation statements)

References 11 publications

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“…Various techniques have been proposed in the literature to mitigate the effect of this problem. Among them, we can cite methods like Clipping, Clipping and filtering [4][5] [6], Active Constellation Extension (ACE) [7] [8], Tone Reservation (TR) [6][9] [10] [11] [12], Selected Mapping (SLM) [13] [14], Switching [15], Coding methods [16], Partial Transmit Sequence (PTS) [8] [17] [18], Interleaving [19] [20] and Discrete Cosine Transform (DCT) [21] [22] [23] [24]. Those techniques can be classified into 3 types [25]: the adding signal techniques, the probabilistic techniques and the coding techniques.…”

Section: Introductionmentioning

confidence: 99%

Shaping Code in Conjunction with DCT for PAPR Reduction in Multicarrier System

Aimer

Bouazza

Bachir

et al. 2020

Preprint

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Nonlinear behavior and power efficiency of the power amplifier (PA) depend in a contradictory way on the input signal amplitude distribution. The transmitted signal in multi-carrier modulation exhibits high peak-to-average power ratio (PAPR) and large bandwidths, leading to the degradation of the radio link and the generation of additional out-of-band interferences, which degrade the quality of the transmission. Practical solutions exist, like a power back-off, but with unacceptable cost-efficient conditions at the transmitter. This paper deals with efficiency improvement using a new PAPR reduction method based on the combination of Discrete Cosine Transform (DCT) and shaping technique. The main principle is to determine an optimal coding scheme according to a trade-off between efficiency performances and coding complexity. Simulation and experimental results in the context of OFDM Signal and in presence of a 20 W - 3,7 GHz RF-PA show an improvement on PAPR reduction of about 3,25 dB. Also, the communication criteria like BER (Bit Error Rate) and EVM (Error Vector Magnitude) are improved of about 2 decades and 8 %, respectively.

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Section: Introductionmentioning

confidence: 99%

Shaping Code in Conjunction with DCT for PAPR Reduction in Multicarrier System

Aimer

Bouazza

Bachir

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…However, although both orthogonal frequency-division multiple access and SC-FDMA have retained the advantages of OFDM, they have also inherited its weaknesses, one of which is the problem of a high peak-to-average power ratio (PAPR). So far, several countermeasures, such as the partial transmit sequence (PTS), 1-3 selective mapping (SLM), [4][5][6] tone reservation (TR), [7][8][9][10][11][12][13][14] block codes, 15,16 and tone injection (TI), 17,18 have been implemented to improve the PAPR. Both the PTS and SLM are types of the multiple signal representation technique.…”

Section: Introductionmentioning

confidence: 99%

Improving the peak‐to‐average power ratio of the single‐carrier frequency‐division multiple access system through the integration of tone injection and tone reservation techniques

Chen

Liang

Chu

et al. 2017

Int J Communication

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SummaryThis paper proposes a new method for reducing the peak-to-average power ratio of the single-carrier frequency-division multiple access system. The method is an integration of the tone injection (TI) and tone reservation (TR) techniques.A recommended method that uses TI to improve TR's low data transmission rate problem that is caused by the reservation of subcarriers. Additionally, to reduce the massive amount of computation required by the combined needs of TI and TR, an iterative flipping algorithm was adopted for this purpose. Simulation results indicate that the proposed method is not only capable of effectively improving the peak-to-average power ratio-reduction efficiency of the single-carrier frequency-division multiple access system but it can also improve the data transmission rate of the conventional TR technique.

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“…To achieve SI estimation, it is possible to transmit a channel-coded form of the SI. However, SI transmission in any form reduces data throughput and is unattractive for practical applications [14].…”

Section: Introductionmentioning

confidence: 99%

A joint OFDM PAPR reduction and data decoding scheme with no SI estimation

Adegbite

McMeekin

Stewart

2016

J Wireless Com Network

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The need for side information (SI) estimation poses a major challenge when selected mapping (SLM) is implemented to reduce peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. Recent studies on pilot-assisted SI estimation procedures suggest that it is possible to determine the SI without the need for SI transmission. However, SI estimation adds to computational complexity and implementation challenges of practical SLM-OFDM receivers. To address these technical issues, this paper presents the use of a pilot-assisted cluster-based phase modulation and demodulation procedure called embedded coded modulation (ECM). The ECM technique uses a slightly modified SLM approach to reduce PAPR and to enable data recovery with no SI transmission and no SI estimation. In the presence of some non-linear amplifier distortion, it is shown that the ECM method achieves similar data decoding performance as conventional SLM-OFDM receiver that assumed a perfectly known SI and when the SI is estimated using a frequency-domain correlation approach. However, when the number of OFDM subcarriers is small and due to the clustering in ECM, the modified SLM produces a smaller PAPR reduction gain compared with conventional SLM.

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A Semi-Blind SLM Scheme for PAPR Reduction in OFDM Systems With Low-Complexity Transceiver

Cited by 47 publications

References 11 publications

Shaping Code in Conjunction with DCT for PAPR Reduction in Multicarrier System

Shaping Code in Conjunction with DCT for PAPR Reduction in Multicarrier System

Improving the peak‐to‐average power ratio of the single‐carrier frequency‐division multiple access system through the integration of tone injection and tone reservation techniques

A joint OFDM PAPR reduction and data decoding scheme with no SI estimation

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