An Effective Clipped Companding Scheme for PAPR Reduction of OFDM Signals 


Vol. 32,  No. 10, pp. 1010-1018, Oct.  2007


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  Abstract

In this paper, we propose a companding scheme to effectively reduce PAPR (Peak-to-Average Power Ratio) of the OFDM (Orthogonal Frequency Division Multiplexing) signals. The proposed scheme is basically based on the companding scheme to consider both complexity and Bit Error Rate (BER) performance, and composed of the clipping followed by the companding scheme. In the first step of the proposed scheme, some of peak signals which do not influence the BER even without them, are clipped. In the second step, the proposed scheme utilizes the μ-law companding to effectively reduce the PAPR. Simulation results show that the proposed clipped companding scheme can provide more PAPR reduction without degradation of the BER performance, as compare to the conventional μ-law companding.

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  Cite this article

[IEEE Style]

J. Kim and Y. Shin, "An Effective Clipped Companding Scheme for PAPR Reduction of OFDM Signals," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 1010-1018, 2007. DOI: .

[ACM Style]

Jaewoon Kim and Yoan Shin. 2007. An Effective Clipped Companding Scheme for PAPR Reduction of OFDM Signals. The Journal of Korean Institute of Communications and Information Sciences, 32, 10, (2007), 1010-1018. DOI: .

[KICS Style]

Jaewoon Kim and Yoan Shin, "An Effective Clipped Companding Scheme for PAPR Reduction of OFDM Signals," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 1010-1018, 10. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880