Nonlinear L2-by-3 transform for PAPR reduction in OFDM systems

Dursun, Serkan; Grigoryan, Artyom M.

doi:10.1016/j.compeleceng.2010.03.008

Cited by 19 publications

(13 citation statements)

References 13 publications

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“…Another evaluation done in this paper is the complexity analysis. The method provides good reduction at a 0.2 and 0.1 however at a=0.2 is the one at which required BER (1x10 -4 ) is obtained [8]. .…”

Section: Simulations Resultsmentioning

confidence: 95%

“…It uses three samples, x n-1 , x n , x n+1 , in each sliding window to calculate the output samples. The following equation shows the L2-by-3 mapping algorithm [8].…”

Section: Non-linear Transformationmentioning

confidence: 99%

“…The result obtained using (7) is the squared value of any nonzero data as denoted by and must be converted to the original data as x n using (8). (8) Where "sgn(.)"…”

Section: Non-linear Transformationmentioning

confidence: 99%

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Review of Non-Linear Transform based Techniques to Reduce the PAPR in OFDM Systems

Singh¹,

Divya²

2014

IJCA

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Orthogonal Frequency Division Multiplexing (OFDM) is a spectrum efficient multicarrier modulation scheme for high speed communication systems. OFDM provides robustness against multipath fading channels, but is sensitive to nonlinear effects due to the high Peak-to-Average Power Ratio (PAPR) of the transmitted signal. The reduction in PAPR is desirable in order to obtain power efficiency and to increase BER performance. This paper explores efficient Non Linear Transformation (NLT) algorithms for optimizing the PAPR of the OFDM signals. The proposed techniques avoid the use of additional Inverse Fast-Fourier Transform (IFFT) as compared to Selective Level Mapping (SLM) and Partial Transmit Sequence (PTS) and hence reduce the computational complexity. NLT schemes do not require the transmission of Side Information (SI) to the receiver, which provides better bandwidth utilization

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Section: Simulations Resultsmentioning

confidence: 95%

“…It uses three samples, x n-1 , x n , x n+1 , in each sliding window to calculate the output samples. The following equation shows the L2-by-3 mapping algorithm [8].…”

Section: Non-linear Transformationmentioning

confidence: 99%

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Review of Non-Linear Transform based Techniques to Reduce the PAPR in OFDM Systems

Singh¹,

Divya²

2014

IJCA

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“…To combat the problems of distortion, techniques like PTS and SLM have been presented in [4], [5] but they require large computations leading to low data rates. A non linear transform based SNT technique has been presented in [6] which does not require large computations. [7] presents modified SNT which uses two samples instead of three samples as used in [6] for PAPR reduction.…”

Section: Related Workmentioning

confidence: 99%

“…A non linear transform based SNT technique has been presented in [6] which does not require large computations. [7] presents modified SNT which uses two samples instead of three samples as used in [6] for PAPR reduction. In this paper modified SNT along with clipping technique has been used to reduce PAPR.…”

Section: Related Workmentioning

confidence: 99%

Joint Non Linear and Distortion based PAPR Reduction Technique for Optical OFDM Systems

Gupta¹

2015

IJIRCCE

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ABSTRACT:Orthogonal Frequency Division Multiplexing (OFDM) has emerged as a promising modulation technique for high speed optical systems as it reduces intersymbol interference and offers high spectral efficiency. But it has an inherent drawback of high Peak to Average Power Ratio (PAPR) due to multiple subcarriers which makes it sensitive to non linear effects. Different techniques have been proposed for PAPR reduction in literature. This paper presents the joint modified sliding norm transform (SNT) combined with distortion based clipping technique for PAPR reduction in Optical OFDM systems. The CCDF shows improvement in PAPR using proposed methodology over existing modified SNT technique. The BER performance is considered to study the performance of the system.

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PAPR reduction in ECMA‐368 UWB communication systems using parametric discrete sliding norm transform

Mehallel

Abed

Boukrouche

et al. 2018

Int J Communication

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Summary ECMA‐368 Standard adopts multiband orthogonal frequency division multiplexing (MB‐OFDM) for high rate ultra‐wideband (UWB) communication systems as a possible candidate for indoor wireless personnel area networks. One of the main drawbacks of MB‐OFDM modulation is the high peak‐to‐average power ratio (PAPR), which limits the power efficiency of the digital‐to‐analog converter and the high power amplifier due to nonlinear distortion. In this paper, a post inverse discrete Fourier transform nonlinear transformation called parametric discrete sliding norm transform (PDSNT) is proposed to reduce the PAPR in MB‐OFDM systems. The PDSNT method in addition to its much lower computational complexity than other schemes recently proposed for ECMA‐368 UWB systems introduces an efficient controlling parameter to obtain a good tradeoff between PAPR reduction and bit error rate (BER) performance degradation. Simulation results show that the proposed PDSNT‐based MB‐OFDM scheme can achieve better performance in PAPR reduction than conventional solutions with affordable BER performance degradation in UWB channel models.

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Nonlinear L2-by-3 transform for PAPR reduction in OFDM systems

Cited by 19 publications

References 13 publications

Review of Non-Linear Transform based Techniques to Reduce the PAPR in OFDM Systems

Review of Non-Linear Transform based Techniques to Reduce the PAPR in OFDM Systems

Joint Non Linear and Distortion based PAPR Reduction Technique for Optical OFDM Systems

PAPR reduction in ECMA‐368 UWB communication systems using parametric discrete sliding norm transform

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