An Adaptive Companding Scheme for Effective PAPR Reduction of OFDM Signals 


Vol. 34,  No. 11, pp. 1067-1075, Nov.  2009


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  Abstract

In this paper, we propose an adaptive companding scheme to effectively reduce PAPR (Peak-to-Average Power Ratio) of the OFDM (Orthogonal Frequency Division Multiplexing) signals, while considering both complexity and BER (Bit Error Rate) performance of systems. The proposed scheme adaptively alters the compression function in the transmitter and the expanding function in the receiver to simultaneously take into account the BER performance and the PAPR reduction. In this paper, we also measure in-band and out-of-band spectra of the proposed scheme, and observe the BER performance after applying the filtering to reduce the out-of-band radiation. As compared to the conventional companding algorithm, simulation results reveal that the proposed scheme achieves more reliable BER performance in all the cases of with and without the filtering, and has a good spectrum characteristic with effective PAPR reduction.

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  Cite this article

[IEEE Style]

J. Kim and Y. Shin, "An Adaptive Companding Scheme for Effective PAPR Reduction of OFDM Signals," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 11, pp. 1067-1075, 2009. DOI: .

[ACM Style]

Jaewoon Kim and Yoan Shin. 2009. An Adaptive Companding Scheme for Effective PAPR Reduction of OFDM Signals. The Journal of Korean Institute of Communications and Information Sciences, 34, 11, (2009), 1067-1075. DOI: .

[KICS Style]

Jaewoon Kim and Yoan Shin, "An Adaptive Companding Scheme for Effective PAPR Reduction of OFDM Signals," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 11, pp. 1067-1075, 11. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880