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A Blind SLM Scheme for Reduction of PAPR in OFDM Systems

Authors: K. Kasiri, M. J. Dehghani

Abstract:

In this paper we propose a blind algorithm for peakto- average power ratio (PAPR) reduction in OFDM systems, based on selected mapping (SLM) algorithm as a distortionless method. The main drawback of the conventional SLM technique is the need for transmission of several side information bits, for each data block, which results in loss in data rate transmission. In the proposed method some special number of carriers in the OFDM frame is reserved to be rotated with one of the possible phases according to the number of phase sequence blocks in SLM algorithm. Reserving some limited number of carriers wont effect the reduction in PAPR of OFDM signal. Simulation results show using ML criteria at the receiver will lead to the same system-performance as the conventional SLM algorithm, while there is no need to send any side information to the receiver.

Keywords: Orthogonal Frequency Division Multiplexing(OFDM), Peak-to-Average Power Ratio (PAPR), Selected Mapping(SLM), Blind SLM (BSLM).

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055254

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References:


[1] Y. Wu, and W.Y. Zou, "Orthogonal frequency division multiplexing: a multi-carrier modulation scheme," IEEE Trans. on Consumer Electronics, vol. 41, no. 3, pp. 392-399, Aug. 1995.
[2] A. Conti, D. Dardari, and V. Tralli, "On the performance of CDMA systems with nonlinear amplifier and AWGN", Proc. of 6th IEEE International Symp. on Spread Spectrum Techniques and Applications, vol. 1, New Jersey, USA, pp. 197-202., Sep. 2000.
[3] X. Li, L.J. Cimini, "Effects of clipping and filtering on the performance of OFDM," IEEE Com. Letters, Vol. 2, No. 5, pp. 131-133, May 1998.
[4] X. Wang, T.T. Tjhung, and C.S. Ng, "Reduction of peak-to-average power ratio of OFDM system using a companding technique," IEEE Trans .on Broadcastaing, Vol. 45, No. 3, pp. 303-307, Sep. 1999.
[5] A. E. Jones, T. A. Wilkinson, and S. Barton, "Block coding scheme for reduction of peak to mean envelope power ratio of multicarrier transmission schemes," IEE Electronics Letters, vol. 30, pp. 2098-2099, Dec. 1994.
[6] N. Petersson, A. Johansson, P. Odling, and P. O. Borjesson, "Analysis of tone selection for PAR reduction," Proc. International Conference on Information, Communications & Signal Processing, Oct. 2001.
[7] B. S. Krongold and D. L. Jones, "A study of active constellation extension for PAR reduction in OFDM," Proc. International OFDM Workshop, Germany, pp. 107-111, Sept. 2002.
[8] L.J. Cimini, Jr., and N.R. Sollenberger, "Peak-to-average power ratio reduction of an OFDM signal using partial transmit sequences," IEEE Communication Letters, Vol. 4, No. 3, pp. 86-88, Mar. 2000.
[9] R. W. Bami, R. F. H. Fischer, and J. B. Hber, "Reducing the peak-toaverage power ratio of multicarrier modulation by selected mapping," IEE Electron. Lett., vol. 32, pp. 2056-2057, Oct. 1996.
[10] Bauml, R., Fischer, R., and Huber, J., "Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping," IEE Electronics Letters, vol. 32, pp. 2056-2057, Oct. 1996.
[11] M. Breiling, S. H. M¨uller-Weinfurtner, and J. B. Huber, "SLM peakpower reduction without explicit side information," IEEE Commun. Lett., vol. 5, no. 6, June 2001, pp. 239-241.
[12] A. D. S. Jayalath and C. Tellambura, "A blind SLM receiver for PAR reduced OFDM," in Proc. IEEE Vehicular technology Conf., Sep. 2002, pp. 219-222.
[13] R. J. Baxely, G. T. Zhou, " MAP Metric for Blind Phase Sequence Detection in Selected Mapping", IEEE Trans. on Broadcast., vol. 51, no.4, Dec. 2005, pp 565-570.
[14] N. Chen, G. T. Zhou, "Peak-to-Average Power Ratio Reduction in OFDM with Blind Selected Pilot Tone Modulation", IEEE Trans. on Wireless Comm., vol. 5, no. 8, Aug. 2006, pp.1536-1542.
[15] M. J. Fern'andez-Getino Garc'─▒a, O. Edfors, and J. M. P'aez-Borrallo, "Joint channel estimation and peak-to-average power reduction in coherent OFDM: a novel approach," in Proc. IEEE Vehicular Technology Conference - Spring 2001, vol. 2, pp. 815-819.
[16] D. L. Jones, "Peak power reduction in OFDM and DMT via active channel modification," Proc. Asilomar Conference on Signals, Systems, and Computers, vol. 2, pp. 1076-1079, Oct. 1999.
[17] R.j Baxley, and T.Zhou, "Power Saving Analysis of Peak-to-Average Power Ratio Reduction in OFDM". IEEE Transactions on Consumer Electronics, VOL.50, NO.3, , pp.792-798, August 2004