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MIMO OFDM PAPR Reduction Techniques
International Journal of Innovative Science and Research TechnologyWireless communication plays a vital role in modern life. Over time, and with the rise in user demands, the field of communication has experienced significant advancements. To enhance transmission efficiency, single-carrier wave systems are increasingly being replaced by multi-carrier wave technologies such as MIMO-OFDM, which has become widely adopted.
P. Sarthika +5 more
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On distortion-yes PAPR reduction methods
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, 2012Three versions of Clipping & Filtering (CF) and just controlled clipping without filtering are compared using extensive simulations. The comparison is performed according to minimum BER criteria while taking into account the spectral mask constraint.
Ilia Iofedov, Igor Gutman, Dov Wulich
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PAPR reduction in wavelet packet modulation
2008 5th International Multi-Conference on Systems, Signals and Devices, 2008Multicarrier modulation (MCM) technique is considered as the key element in realizing high-speed wireless and wireline digital communications. However, high peak-to-average power ratio (PAPR) of transmitted signals is a major drawback for multicarrier modulation systems such as orthogonal frequency division multiplexing (OFDM) and wavelet packet ...
M. Rostamzadeh, V. T. Vakily
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Interleaving Optimization in OFDM PAPR Reduction
2007 17th International Conference Radioelektronika, 2007One of approaches in the Peak to Average Power Ratio (PAPR) reduction methods for Orthogonal Frequency Division Multiplex (OFDM) is multiple signal representation (MSR) technique. This article presents the improvement of MSR technique where multiple signal representations are produced by different interleavers.
Zbynek Fedra +2 more
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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 +2 more
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Papr Reduction for Beamforming Ofdm Transmitters
2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006A high peak-to-average-power ratio (PAPR) is a primary drawback of orthogonal frequency-division multiplexing (OFDM). Many methods have been proposed to reduce the OFDM PAPR for single-antenna and for MIMO systems. Some systems, however, use multiple antennas for frequency-selective transmit beamforming either to a single or multiple simultaneous ...
T.A. Thomas, D.L. Jones
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CE-OFDM: A PAPR Reduction Technique
2011Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier modulation technique having multiple subcarriers which can be overlapped. It finds various applications in wireless communication networks. The main advantages of OFDM are in high rate data communications; but the major hurdle is that is suffers from the Peak-to-Average Power Ratio ...
R. S. Chaudhari, A. M. Deshmukh
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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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Efficiency analysis of PAPR reduction schemes
2012 International Symposium on Telecommunication Technologies, 2012Orthogonal frequency division multiplexing (OFDM) is a robust transmission technique to combat the influence of wireless fading channels. However, OFDM suffers from high peak-to-average power ratio (PAPR) that significantly reduces the efficiency of the high power amplifier (HPA). This paper reviews the performance of few PAPR reduction techniques that
Sara Razavi +4 more
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Comparison of PAPR in OFDM and FBMC/OQAM Using PAPR Reduction Methods
2021Though the multicarrier technique orthogonal frequency division multiplexing (OFDM) is generous in 4G technology, it suffers with spectrum leakage, inefficient spectrum, and high PAPR. In this paper, the 5G waveform—FBMC/OQAM PAPR—is compared with OFDM in terminologies of PAPR, and it is analyzed that FBMC/OQAM suffers with high PAPR than OFDM which ...
Sravanti Thota +2 more
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