caa a22 4500 606206507 CHVBK 20210128101011.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s00034-014-9868-4 doi (NATIONALLICENCE)springer-10.1007/s00034-014-9868-4 Post-IFFT-Modified Selected Mapping to Reduce the PAPR of an OFDM System [Elektronische Daten] [Montadar Taher, Mandeep Singh, Mahamod Ismail, Salina Samad, M. Islam, Hussain Mahdi] Orthogonal frequency-division multiplexing is now one of the most important modulation techniques due to its advantages. Despite its ability to overcome the equalization problem, multipath fading channels, and other issues, this system has a serious problem concerning the high output peaks with respect to the average power, which is called the peak-to-average power ratio (PAPR). Selected mapping (SLM), partial transmitted sequence, and amplitude clipping and filtering are some efficient methods to reduce the PAPR. In a previous work, we slid a single-phase rotation vector on the data sequence in the frequency domain to reduce the PAPR and the complexity compared to the conventional SLM. In this paper, we present a novel method that utilizes the same approach of our previous work, but it processes the data after the inverse fast Fourier transform block (time-domain operations) using a modified version of the SLM scheme, which has less computational complexity than the conventional one. The mathematical derivations and the simulation results show that the PAPR, the computational complexity, and the side information were reduced significantly by the proposed method. Springer Science+Business Media New York, 2014 Complexity reduction nationallicence OFDM nationallicence PAPR nationallicence Post IFFT nationallicence SLM nationallicence Taher Montadar Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut Singh Mandeep Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut Ismail Mahamod Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut Samad Salina Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut Islam M. Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut Mahdi Hussain Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/2(2015-02-01), 535-555 0278-081X 34:2<535 2015 34 34 https://doi.org/10.1007/s00034-014-9868-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00034-014-9868-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Taher Montadar Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut NATIONALLICENCE 700 1- Singh Mandeep Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut NATIONALLICENCE 700 1- Ismail Mahamod Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut NATIONALLICENCE 700 1- Samad Salina Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut NATIONALLICENCE 700 1- Islam M. Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut NATIONALLICENCE 700 1- Mahdi Hussain Department of Electrical Electronics and System Engineering, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Selangor, D.E, Malaysia aut NATIONALLICENCE 773 0- Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/2(2015-02-01), 535-555 0278-081X 34:2<535 2015 34 34