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BER Reduction in OFDM Systems using ZCT Matrix Transform
2012
International Journal of Advances in Computing and Information Technology
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Therefore, PAPR & BER reduction is very essential. ...
High PAPR is one of the major drawbacks in OFDM systems, which causes a significant level of signal distortions, when the modulated signals are amplified through high power amplifiers (HPAs). ...
Therefore, two novel reduction techniques, namely, Zadoff-Chu matrix Transform (ZCT) precoding based BER reduction technique and ZCT postcoding based BER reduction technique for OFDM systems were proposed ...
doi:10.6088/ijacit.12.14009
fatcat:ytnhc2ch2fadhhjaj36p7pztt4
Sliding the SLM-technique to Reduce the Non-Linear Distortion in OFDM Systems
2013
Elektronika ir Elektrotechnika
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In this paper, a novel technique that can be effectively used to reduce the peak-to-average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) system is proposed. ...
Index Terms-OFDM, peak to average power ratio, selected mapping, complexity. ...
ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their valuable comments and suggestions to improve the paper. ...
doi:10.5755/j01.eee.19.5.2075
fatcat:6ch5urdbj5gj5isj5rlzi44md4
A Preprocessing Method for PAPR Reduction in OFDM Systems by Modifying FFT and IFFT Matrices
2007
2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications
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In this paper we propose an algorithm for PAPR reduction in OFDM systems, based on a modification in the IFFT matrix at the transmitter and using the inverse matrix at the receiver. ...
The proposed method entails less complexity at the transmitter in comparison with other PAPR reduction algorithms. It also requires less increase in SNR for the same BER compared to other methods. ...
PAPR REDUCTION USING MODIFIED FFT/IFFT MATRICES In this section we propose a new technique based on modifying the FFT/IFFT matrices. ...
doi:10.1109/pimrc.2007.4394512
dblp:conf/pimrc/KasiriHTOG07
fatcat:tkvm3keo3fbvfnvixr2dq4v7ha
Designing a Novel PTS Method to Reduce Peak to Average Power Ratio in OFDM
2019
VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE
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Reduced PAPR at OFDM transmitter helps power amplifier to operate in stable mode and reduction in complexity of digital to analog converter (DAC). ...
Reducing PAPR degrades bit error rate (BER) or computational complexity. PTS is one of the best methods of PAPR reduction. ...
Reduced PAPR at OFDM transmitter helps power amplifier to operate in stable mode and reduction in complexity of digital to analog converter (DAC). ...
doi:10.35940/ijitee.a4179.119119
fatcat:kqeo4okjgngwfnx5itpszhskyq
A Novel ZCS-Clipping Precoding Technique for PAPR Reduction using DCT-OFDM in Vehicular Channels
2015
International Journal of Hybrid Information Technology
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In this paper, we propose a novel precoding Zadoff-Chu Sequence (ZCS) combined with the Clipping technique for PAPR reduction in OFDM based on the Discrete Cosine Transform (DCT). ...
However, the OFDM suffers from certain drawbacks including higher system complexity due to the generation of the peak to average ratio (PAPR). ...
A ZCT pre-and post-coding is utilized to decrease the PAPR for OFDM systems over wireless networks [25] . ...
doi:10.14257/ijhit.2015.8.5.02
fatcat:zyephodszfhvzmu4shwltj7smy
Overview Of MC CDMA Papr Reduction Techniques
2012
International Journal of Distributed and Parallel systems
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This paper focuses on review of different PAPR reduction techniques with attendant technical issues as well as criteria for selection of PAPR reduction technique. ...
To reduce PAPR the constraints are low power consumption, and low Bit Error Rate (BER). Spectral bandwidth is improved by better spectral characteristics, and low complexity/cost. ...
Imran Baig [12] proposed PAPR reduction in OFDM using Zadeoff Chu-matrix transform based pre/post-code techniques which do not require any power increment, complex optimization and side information to ...
doi:10.5121/ijdps.2012.3217
fatcat:tfmvjw4wwzcsfatrhcxipmuury
A Low-Complexity Time-Domain Linear Symbol Combining Technique for PAPR Reduction in OFDM Systems
2008
IEEE Transactions on Signal Processing
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The aim of this paper is to propose a post-inverse fast Fourier transform (IFFT) PAPR reduction method based on intelligent linear symbol combining with the objective to minimize the PAPR at the transmitter ...
Index Terms-Orthogonal frequency-division multiplexing (OFDM), peak-to-average-power ratio (PAPR) reduction, timedomain processing. ...
To optimize both complexity and PAPR reduction ability, we provide a novel PAPR reduction technique that operates on multiple time-domain OFDM symbols. ...
doi:10.1109/tsp.2008.928161
fatcat:jwbrc4cbivgllgb5qsmg2gpblm
A Novel Transceiver Model for Polar Transform Optical (PTO-) OFDM for Visible Light Communication (VLC) Based on Peak to Average Power Ratio Reduction using Precoding
2020
VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE
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processing techniques are used to increase the efficiency of the OFDM and to adapt OFDM to VLC systems. ...
A precoding technique is proposed to reduce the PAPR of intensity-modulated for direct detectability of the OFDM signal destined for the wireless optical link using Cartesian-to-Polar conversion. ...
Amplitude CCDF profile Performance of PAPR reduction techniques for lower ɲ factor and fixed QAM and OFDM subcarriers. ...
doi:10.35940/ijitee.e9914.0891020
fatcat:unlzxdl7lvev7mg6stu5yxioom
On PAPR Reduction in Pilot-Assisted Optical OFDM Communication Systems
2017
IEEE Access
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The PA technique results in higher reduction in PAPR for high P but at the expense of increased complexity. ...
This paper presents a novel theoretical characterization of the pilot-assisted (PA) technique proposed for peakto-average-power-ratio (PAPR) reduction in optical orthogonal frequency division multiplexing ...
PA Technique for PAPR Reduction in ACO-OFDM The ACO-OFDM system involves activating the odd subcarriers of the IFFT. ...
doi:10.1109/access.2017.2700877
fatcat:xqhawfs4hnf6vfu6dqwm5ye2oy
A Novel Clipping-Based Method to Reduce Peak-to-Average Power Ratio of OFDM Signals
2020
Information
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This paper proposes a novel clipping-based method to reduce the PAPR of OFDM signals. ...
A number of techniques have been proposed to reduce the PAPR of OFDM signals, among which the clipping-based methods have gained a lot of attention due to the effective PAPR reduction and simplicity of ...
In future work, we will consider applying the techniques of PAPR reduction to some post-OFDM waveforms such as 5G NR, WiFi6, etc. ...
doi:10.3390/info11020113
fatcat:hqudaew4wjdb3jcjely2sqfu44
DFT Spread-Optical Pulse Amplitude Modulation for Visible Light Communication Systems
2022
IEEE Access
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signal is introduced in this paper to address the high PAPR issue of OFDM. ...
Simulation results show that the PAPR of the proposed scheme is 7 dB lower than that of DCO-OFDM. ...
As such, the output time domain samples of the IFFT are bipolar real have as low PAPR as that of the SCM scheme. ...
doi:10.1109/access.2022.3147209
fatcat:cjkn2f3z5vgx3b4fljogo6shsq
On the Potential of OFDM Enhancements as 5G Waveforms
2014
2014 IEEE 79th Vehicular Technology Conference (VTC Spring)
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The ideal radio waveform for an upcoming 5 th Generation (5G) radio access technology should cope with a set of requirements such as limited complexity, good time/frequency localization and simple extension ...
Significant focus is given to the novel zero-tail paradigm, which allows boosting the OFDM flexibility while circumventing demerits such as poor spectral containment and sensitivity to hardware impairments ...
The low PAPR obtained by DFT-s-OFDM is not expected to be a significant advantage in local area. ...
doi:10.1109/vtcspring.2014.7023019
dblp:conf/vtc/BerardinelliPLWTM14
fatcat:lnptyoeqjzcdxdpgbl53hlig4e
A high-speed phosphorescent LED-based visible light communication system utilizing SQGNRC precoding technique
2017
Photonic network communications
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system employing phosphor-based white light-emitting diodes for the first time. ...
Peak-over-average power ratio (PAPR) control utilizing precoding technique based on square rootgeneralized raised cosine function is proposed and verified experimentally through a visible light communication ...
However, none of PAPR reduction technique mentioned above has been introduced to VLC system to solve the PAPR issue of OFDM modulation. ...
doi:10.1007/s11107-017-0704-1
fatcat:ie6uzy4y7rhi7fcdqmgn3c65em
Impact of Hybrid PAPR Reduction Techniques on FBMC for 5G Applications
2020
International Journal on Smart Sensing and Intelligent Systems
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A high PAPR in the FBMC system can be overcome by a unique combination of precoding and conventional PAPR reduction techniques proposed in this paper. ...
The simulation results show a significant reduction in PAPR for both the transforms applied individually as well as in combination with conventional PAPR reduction methodologies. ...
Both clipping and companding have low complexity, and these are less complex procedures for PAPR reduction. ...
doi:10.21307/ijssis-2020-024
fatcat:urpqgbmddnbr5eccia3yhfoste
Efficiency Analysis of a Truncated Flip-FBMC in Burst Optical Transmission
2021
IEEE Access
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In this work, for the first time to the authors knowledge, we propose a novel Flip-FBMC scheme based transmultiplexer (TMUX) model in [19] as a good alternative for the traditional Flip-OFDM technique ...
) communication systems at the expense of high peak to average power ratio (PAPR) specially for large constellation signals, so the clipping noise must be low to achieve high optical power and SNRs [4 ...
doi:10.1109/access.2021.3096660
fatcat:v7rp7v6hlrbexetbdihufhr6hu
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