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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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Reducing the PAPR of OTFS Modulation Using Hybrid PAPR Algorithms
Wireless Personal Communications, 2023Arun Kumar 0014 +3 more
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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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International Journal of Emerging Research in Management and Technology, 2018
The term OFDM is a special type of FDM which has very vast application in the field of wired and wireless communication systems. In this paper we are discussing about the main problem of OFDM i.e. Peak to Average Power Ratio (PAPR) which affects the performance and efficiency of Power Amplifier.
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The term OFDM is a special type of FDM which has very vast application in the field of wired and wireless communication systems. In this paper we are discussing about the main problem of OFDM i.e. Peak to Average Power Ratio (PAPR) which affects the performance and efficiency of Power Amplifier.
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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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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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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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Low-PAPR Multiplexing of Data and Pilots
2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016Single-carrier frequency-division multiplexing (SC-FDM) has been adopted as the uplink (UL) waveform in the 3GPP LTE standards due to its various desirable features. One key benefit of SC-FDM is its low peak-to-average-power ratio (PAPR), which is highly desirable in the UL to lower down the cost of the power amplifier (PA) in the user equipment (UE ...
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A hybrid technique for the PAPR reduction of NOMA waveform
International Journal of Communication Systems, 2023Arun Kumar
exaly