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PAPR Reduction by Symbol Nulling
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009As a multicarrier signal can exhibit large peaks in the time domain, the amplifier used to transmit the multicarrier signal must be highly linear, and thus expensive, to avoid non-linear signal distortion. To reduce the high peak-to-average power ratio, and hence to allow cheaper amplifiers, several techniques are described in the literature.
Dieter Van Welden, Heidi Steendam
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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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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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PAPR Analytical Characterization and Reduced-PAPR Code Allocation Strategy for MC-CDMA Transmissions
IEEE Transactions on Wireless Communications, 2011In this paper, an approximate analytical expression for the peak-to-average power ratio (PAPR) of a Multi-Carrier Code Division Multiple Access (MC-CDMA) signal is derived. Then, it is demonstrated that the PAPR of a MC-CDMA system employing Walsh-Hadamard (WH) codes can be suitably reduced by resorting to a judicious strategy for the allocation of the
GIANNETTI, Filippo +2 more
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BER Based OFDM PAPR Estimation [PDF]
2018 26th International Conference on Software, Telecommunications and Computer Networks (SoftCOM), 2018 High Peak-to-Average Power Ratio (PAPR) of the transmitted OFDM signal is a well-known major drawback of the Orthogonal Frequency-Division Multiplexing (OFDM), so the High-Power Amplifier (HPA) is therefore necessary to operate in its linear region, i.e. with large back-off between the operating input power and its saturation region, so introducing not
Adriana Lipovac, Ante Mihaljevic
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PAPR analysis in noncontiguous OFDM systems
Transactions on Emerging Telecommunications Technologies, 2016AbstractNoncontiguous orthogonal frequency‐division multiplexing (NC‐OFDM) is a modulation technique suitable for 5G communications. It achieves high spectral efficiency due to aggregation and modulation with nonzero data symbols of only nonoccupied spectrum resources (subcarrier blocks).
Pawel Kryszkiewicz +2 more
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Correlatively Precoded OFDM With Reduced PAPR
IEEE Transactions on Vehicular Technology, 2016Correlative precoders have been proposed for orthogonal frequency-division multiplexing (OFDM) to provide either improved spectral sidelobe suppression, which yields very compact signal spectrum, or enhanced intercarrier interference (ICI) self-cancelation, which renders robustness against carrier frequency offset (CFO).
Tsung-Wei Wu, Char-Dir Chung
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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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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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