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Reducing the peak-to-average power ratio of OFDM
VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151), 2002The distribution of the peak-to-average power (PAP) ratio of an OFDM signal is derived, showing that large PAP ratios only occur very infrequently. Because of this, PAP reducing techniques which distort the signal can be quite effective, since only a small fraction of the OFDM signal has to be distorted.
R. van Nee, A. de Wild
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A Gradient Based Peak-to-Average Power Ratio Reduction Method
IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, 2007One promising approach to peak to average power ratio (PAPR) reduction for orthogonal frequency division multiple access (OFDMA) is the use of reserved tones, which are modulated so as to reduce the PAPR. One problem with this approach is the computationally efficient determination of reserved tone signals that best reduce the PAPR.
Jayant Baliga +3 more
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Signal Classification Using a Peak-to-Average Power Ratio Statistic
2009 IEEE International Conference on Communications, 2009This paper addresses signal classification based on an average power statistic for peak-to-average-power ratio (PAR) reduced signals. Specifically, it is assumed that either a QAM or a Complex Gaussian finite-length symbol is transmitted in a noisy, peak-limited channel with known peak power. The goal is determine the whether an uninformed receiver can
Robert J. Baxley +2 more
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Peak-to-Average Power Ratio Analysis of PCC-OFDM Signals
2009 IEEE 70th Vehicular Technology Conference Fall, 2009In this paper, a statistical analysis of the peak-to- average power ratio (PAPR) of Polynomial cancellation coded OFDM (PCC-OFDM) signals is presented. PCC-OFDM has the good performance of compressing intercarrier interference (ICI) at the cost of high PAPR.
Qi Liu +4 more
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Peak-to-Average Power Ratio Analysis for NC-OFDM Transmissions
2007 IEEE 66th Vehicular Technology Conference, 2007In this paper, we present a statistical analysis of the peak-to-average power ratio (PAPR) for non-contiguous orthogonal frequency division multiplexing (NC-OFDM) signals. When studying contiguous OFDM signals, most PAPR analysis techniques assume the symbols to be identically and independently distributed (i.i.d.). However, in an NC-OFDM transmission,
Rakesh Rajbanshi +2 more
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On the computation and reduction of the peak-to-average power ratio in multicarrier communications
IEEE Transactions on Communications, 2000For any code C defined over an equal energy constellation, it is first shown that at any time instance, the problem of determining codewords of C with high peak-to-average power ratios (PAPR) in a multicarrier communication system is intimately related to the problem of minimum-distance decoding of C.
Vahid Tarokh, Hamid Jafarkhani
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Peak-to-Average Power Ratio Reduction in Multi-User OFDM
2007 IEEE International Symposium on Information Theory, 2007In this paper variants of selected mapping are investigated for different MIMO OFDM scenarios (point-to- point, multiple-access, and broadcast channel). Particular focus is on the broadcast scenario, where transmitter side precoding is mandatory which usually increases peak-to-average power ratio (PAR).
Christian Siegl, Robert F. H. Fischer
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Peak-to-Average Power Ratio in WFMT Systems
2006 International Conference on Wireless Communications, Networking and Mobile Computing, 2006This paper discuses the peak to average power ratio (PAR) for the signal of a novel wavelet based filtered multi-tone (WFMT) modulation. The wavelet based filtered multi-tone (WFMT) modulation was developed as an alternative line code for xDSL system and represents future extension of OFDM/DMT technologies.
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Reduction of the Peak-to-Average Power Ratio for the OFDM/OQAM Modulation
2006 IEEE 63rd Vehicular Technology Conference, 2006OFDM/OQAM is now a recognized alternative to conventional OFDM for the transmission of signals over multipath fading channels. Indeed with OFDM/OQAM an appropriate pulse-shaping can be introduced to fight against time and frequency dispersion. In order to reduce the occurrence of large peak-to-power ratios (PAPR) that are inherent to multicarrier ...
Alexandre Skrzypczak +2 more
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Estimation of Peak-to-Average Power Ratio of Optimal FTN Signals
2019 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2019The development of 5G and 6G networks is impossible without improving spectral efficiency. Faster than Nyquist (FTN) signaling allows increasing symbol rate of transmission and may be applied both to multicarrier and single-carrier signals. However, it leads to uncontrollable intersymbol interference in the time domain.
Anna S. Ovsyannikova +2 more
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