An SLM-PRSC Hybrid Scheme for PAPR Reduction of OFDM Signals 


Vol. 32,  No. 6, pp. 565-571, Jun.  2007


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  Abstract

In order to improve PAPR (Peak-to-Average Power Ratio) reduction performance of the conventional SLM (SeLective Mapping) for OFDM (Orthogonal Frequency Division Multiplexing) signals, we propose an effective SLM-PRSC (PAPR Reduction Sub-Carrier) hybrid scheme. In the proposed scheme, after performing the SLM for the frequency domain OFDM symbol excluding pre-determined PRSC positions, the SLM-PRSC hybrid sequence with the lowest PAPR generated by adding the time domain PRSC sequence to the results of the SLM, is selected as the transmitted OFDM signal. Since the identical PRSC sequences generated a priori are repeatedly used for every OFDM symbol, excessive IFFT (Inverse Fast Fourier Transform) calculation is avoided. Simulation results show that the proposed scheme significantly improves the PAPR reduction performance of the conventional SLM, while avoiding excessive increase of IFFT calculation and the overhead for the SLM.

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  Cite this article

[IEEE Style]

S. Yang, S. Han, Y. Shin, "An SLM-PRSC Hybrid Scheme for PAPR Reduction of OFDM Signals," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 6, pp. 565-571, 2007. DOI: .

[ACM Style]

Suckchel Yang, Seungwoo Han, and Yoan Shin. 2007. An SLM-PRSC Hybrid Scheme for PAPR Reduction of OFDM Signals. The Journal of Korean Institute of Communications and Information Sciences, 32, 6, (2007), 565-571. DOI: .

[KICS Style]

Suckchel Yang, Seungwoo Han, Yoan Shin, "An SLM-PRSC Hybrid Scheme for PAPR Reduction of OFDM Signals," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 6, pp. 565-571, 6. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880