An overview of peak-to-average power ratio reduction schemes for OFDM signals

Lim, Dae‐Woon; Heo, Seok-Joong; No, Jong-Seon

doi:10.1109/jcn.2009.6391327

Cited by 156 publications

(98 citation statements)

References 49 publications

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“…If the HPA has not functioned in the linear region with large power back-off, it is impossible to keep the out-of-band power below the specified limits. This situation contributes to very expensive transmitters and inefficient amplification [2]. Consequently, it is significant and compulsory to study the characteristics of the PAPR including its reduction and distribution in OFDM systems, so that utilize the technical features of the OFDM.…”

Section: B Papr In Ofdmmentioning

confidence: 99%

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PAPR Reduction Using Eight Factors Rotating Phase Shift Technique Based on Local Search Algorithm in OFDM

Nahar

Abdalla

Jaber

et al. 2017

Review of Computer Engineering Research

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Article HistoryOrthogonal frequency division multiplexing (OFDM), Multi-Carrier (MC) system, is a popular standard in wireless communication for its enabling high throughput data transfer. However, the MC signal usually has a high peak-to-average power ratio (PAPR), which involves a wide-dynamic-range, power consuming amplifier. Whenever the signal height is greater than the amplified linear region, the signal is distorted. In this paper, propose a novel scheme that rotating phase shift (RPS) technique based signal scrambling is proposed to reduce PAPR in OFDM systems. In addition, the pilot phase signal is picked out by RPS technique applied new algorithm the local research to alleviate scrambling information corruption and show discernible advancements. So, our technique improves over the existing ones in the same category. The transmitted signal of OFDM is tested with Mobile WiMAX IEEE 802.16e standard, that compared the various phase shift with a slight computational complexity is studied. The simulation result shows that original signal at pilot-assisted QAM is capable of bringing down the electrical PAPR by about 3.5 times as a modest complementary cumulative distribution function (CCDF) point of 10-3 for M=8 low complexity. In addition, the best phase-shift factor was selected to reduce the monetary value of computational complexity.Contribution/ Originality: The paper contributes the first logical analysis eight factors rotating phase shift (RPS). The proposed method is applied local research algorithms to reduce peak-to-average power ratio based on OFDM.

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Section: B Papr In Ofdmmentioning

confidence: 99%

“…There are many PAPR reduction techniques, which are well summarized in Lim, et al [2]. PAPR reduction methods can be classified into four categories:…”

Section: B Papr In Ofdmmentioning

confidence: 99%

PAPR Reduction Using Eight Factors Rotating Phase Shift Technique Based on Local Search Algorithm in OFDM

Nahar

Abdalla

Jaber

et al. 2017

Review of Computer Engineering Research

View full text Add to dashboard Cite

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“…These alternative input sequences, X are then undergone Inverse Fourier Transform (IFFT) process to generate OFDM signal in the time domain. The signal is written as (2) where is the orthogonal series of sinusoids performed by IFFT. Finally, the minimum Peak-Average Power Ratio (PAPR) OFDM signals are obtained by max…”

Section: Conventional Selective Mapping Techniquementioning

confidence: 99%

“…The high PAPR claims a higher dynamic range of linear power amplifier thereby resulting in power deficiency as well as increasing the overall system cost [1] [2]. Many techniques have been proposed to minimize the high PAPR and it must be note that every technique has their own advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Modified selective mapping scheme with low complexity for minimizing high peak-average power ratio in orthogonal frequency division multiplexing system

Abdullah

Idris

Saparon

2016

AIP Conference Proceedings

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Abstract. High Peak-to-Average Power Ratio (PAPR) is known to be an unavoidable problem in Orthogonal Frequency Division Multiplexing (OFDM). In this paper, a modified Selective Mapping (SLM) to minimize the high PAPR in OFDM system with low computational complexity is proposed. This technique utilizes the Circulant Shift Codeword technique to the conventional SLM. This technique is utilizing the circulant shift that needs two or more bits in a codeword for shifting. The simulation results show a 27.6% improvement in minimizing high PAPR with minimum Inverse Fast Fourier Transform (IFFT) blocks used. Modified SLM technique minimizes more than 70% of the IFFT blocks compare to conventional SLM. Thus, the computational complexity which is based on the number of IFFT block can be reduced.

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“…Based on this criterion, these schemes can be termed as multiplicative and additive schemes [13]. Multiplicative schemes include SLM and PTS, and Additive schemes include Tone reservation (TR) [14], Tone Injection (TI) [15], and clipping.…”

Section: Introductionmentioning

confidence: 99%

Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

Sharma¹

2014

IJCA

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Orthogonal frequency division multiplexing (OFDM) has been adopted as a standard for many modern wireless applications requiring high data rate due to bandwidth efficiency, resistance to frequency selective fading and simple digital realization using IFFT/FFT operations. However, physical implementation of the OFDM system suffers from several difficulties. One of the major limitations of OFDM is that it suffers from high peak-to-average power ratio (PAPR), which results in inter-carrier interference (ICI), high out-ofband radiation, and degradation of bit error rate performance. In this paper, different OFDM PAPR reduction techniques are reviewed and analyzed based on their computational complexity, bandwidth requirement and error performance.

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An overview of peak-to-average power ratio reduction schemes for OFDM signals

Cited by 156 publications

References 49 publications

PAPR Reduction Using Eight Factors Rotating Phase Shift Technique Based on Local Search Algorithm in OFDM

PAPR Reduction Using Eight Factors Rotating Phase Shift Technique Based on Local Search Algorithm in OFDM

Modified selective mapping scheme with low complexity for minimizing high peak-average power ratio in orthogonal frequency division multiplexing system

Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

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