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Soft decision PAPR reduction in OFDM
International Multi-Conference on Systems, Sygnals & Devices, 2012This work deals with problem of improving the peak-to-mean average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) signals. Clipping is simple and efficient way to overcome the large PAPR in OFDM systems ; however this technique results in bit error rate (BER) increasing in the receiver.
Rožić, Nikola, Radić, Joško
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Linear Precoding for PAPR Reduction of GFDMA
IEEE Wireless Communications Letters, 2016Similar to the widely used orthogonal frequency division multiplexing systems, generalized frequency division multiplexing suffers from a high peak-to-average power ratio (PAPR). In this letter, we propose a data-independent precoder to minimize the variance of the instantaneous power (IP), subject to the constraint of unchanged average IP as a means ...
Zahra Sharifian +3 more
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FBMC-OQAM PAPR Reduction Schemes
2020 International Conference on Information and Communication Technology Convergence (ICTC), 2020Peak to average power ratio (PAPR) is a major problem that affects the performance of multicarrier systems. Filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is one of modulation schemes that has raised the attention of researchers given its superiority in terms of spectral efficiency. As any other multicarrier modulation
Nahla Ali Mohamed Al Harthi +2 more
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Receiver based PAPR reduction in OFDMA
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014High peak-to-average power ratio is one of the major drawbacks of orthogonal frequency division multiplexing (OFDM). Clipping is the simplest peak reduction scheme, however, it requires clipping mitigation at the receiver. Recently compressed sensing has been used for clipping mitigation (by exploiting the sparse nature of clipping signal).
Anum Ali +3 more
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Effects of PAPR reduction on HPA predistortion
IEEE Transactions on Consumer Electronics, 2005There have been many papers concerning about the peak to average power ratio (PAPR) reduction and high power amplifier (HPA) linearization techniques for wireless OFDM communication systems. Few papers, however, make deep analysis on the relation between these two techniques.
Bo Ai 0001 +4 more
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Floating OFDM-SNM for PAPR and OOBE Reduction
2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021The novel orthogonal frequency division multiplexing with subcarrier number modulation (OFDM-SNM) transmission scheme offers high spectral and energy efficiency compared to the conventional OFDM; this is due to the extra information bits loaded over the active subcarriers.
Ahmad M. Jaradat +2 more
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PAPR reduction scheme for RAVIS
2017 6th Mediterranean Conference on Embedded Computing (MECO), 2017Peak-to-average Power Reduction scheme for digital terrestrial multimedia broadcasting system RAVIS is presented. Comparative analysis results of different PAPR reduction algorithms is shown.
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AGP–NCS Scheme for PAPR Reduction
Wireless Personal Communications, 2015In this paper, a combinational method is proposed for peak-to-average power ratio reduction in orthogonal frequency division multiplexing systems using approximate gradient-project with null-subcarriers switching (AGP---NCS) scheme. The key idea of the proposed method is to generate a dynamically extended outer constellation points using AGP method ...
Amit Mishra 0001 +2 more
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Optimum selective mapping for PAPR reduction
2011 Wireless Telecommunications Symposium (WTS), 2011High Peak-to-Average Power Ratio (PAPR) is a major drawback of multi-carrier transmission such as Orthogonal Frequency Division Multiplexing (OFDM). Various techniques have been proposed to reduce PAPR, among them SeLective Mapping (SLM) is a non-distortion method that incurs little loss in efficiency. In this paper, the criterion for optimum selective
Yanyan Wu, Ka Lok Man, Y. Wang
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Extrapolated Projection Methods for PAPR Reduction
2018 26th European Signal Processing Conference (EUSIPCO), 2018Over more than the last decade, there has been a significant effort in research to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency-division multiplexing (OFDM) systems. This effort has been mainly driven by the need for enhancing the efficiency of power amplifiers.
Jochen Fink +3 more
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