Authors :
Birdhan Hembram; Dipu Hembram; Guna Hembram; Dukhia Soren
Volume/Issue :
Volume 11 - 2026, Issue 5 - May
Google Scholar :
https://tinyurl.com/uuex5y22
Scribd :
https://tinyurl.com/yr79mz4x
DOI :
https://doi.org/10.38124/ijisrt/26May134
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
This work presents a comprehensive simulation study of an Orthogonal Frequency Division Multiplexing (OFDM)
system incorporating Selective Mapping (SLM) for Peak-to-Average Power Ratio (PAPR) reduction under realistic wireless
channel conditions. The system employs M-QAM modulation schemes (4-QAM, 16-QAM, and 64-QAM) and considers both
Additive White Gaussian Noise (AWGN) and multipath Rayleigh fading. Oversampling is implemented to accurately
capture peak signal variations, and cyclic prefix is used to mitigate inter-symbol interference. The SLM technique is
evaluated for multiple phase sequence sets (U = 1, 4, 8), where U = 1 represents the baseline OFDM system without PAPR
reduction. Performance is analyzed in terms of Bit Error Rate (BER) versus Signal-to-Noise Ratio (SNR) and
Complementary Cumulative Distribution Function (CCDF) of PAPR. Frequency-domain equalization is applied at the
receiver using perfect channel knowledge. Results demonstrate that increasing the number of SLM phase candidates
significantly reduces PAPR without degrading BER performance. However, marginal computational complexity increases
are observed with higher U values. The study confirms that SLM is an effective distortion less technique for improving
OFDM transmission efficiency in fading environments. The simulation framework and results are derived from a journalgrade implementation with reproducible parameters and statistical averaging.
References :
- R. van Nee and R. Prasad, OFDM for Wireless Multimedia Communications, Artech House, 2000.
- S. H. Han and J. H. Lee, “An overview of peak-to-average power ratio reduction techniques for multicarrier transmission,” IEEE Wireless Communications, 2005.
- X. Li and L. J. Cimini, “Effects of clipping and filtering on the performance of OFDM,” IEEE Communications Letters, 1998.
- R. W. Bäuml, R. F. H. Fischer, and J. B. Huber, “Reducing the peak-to-average power ratio of multicarrier modulation by selective mapping,” Electronics Letters, 1996.
- T. S. Rappaport, Wireless Communications: Principles and Practice, Prentice Hall, 2002.
This work presents a comprehensive simulation study of an Orthogonal Frequency Division Multiplexing (OFDM)
system incorporating Selective Mapping (SLM) for Peak-to-Average Power Ratio (PAPR) reduction under realistic wireless
channel conditions. The system employs M-QAM modulation schemes (4-QAM, 16-QAM, and 64-QAM) and considers both
Additive White Gaussian Noise (AWGN) and multipath Rayleigh fading. Oversampling is implemented to accurately
capture peak signal variations, and cyclic prefix is used to mitigate inter-symbol interference. The SLM technique is
evaluated for multiple phase sequence sets (U = 1, 4, 8), where U = 1 represents the baseline OFDM system without PAPR
reduction. Performance is analyzed in terms of Bit Error Rate (BER) versus Signal-to-Noise Ratio (SNR) and
Complementary Cumulative Distribution Function (CCDF) of PAPR. Frequency-domain equalization is applied at the
receiver using perfect channel knowledge. Results demonstrate that increasing the number of SLM phase candidates
significantly reduces PAPR without degrading BER performance. However, marginal computational complexity increases
are observed with higher U values. The study confirms that SLM is an effective distortion less technique for improving
OFDM transmission efficiency in fading environments. The simulation framework and results are derived from a journalgrade implementation with reproducible parameters and statistical averaging.
