The Research of Companding Transform for Peak-to-Average Power Ratio Reduction of OFDM Signals

Abstract:

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One of the main drawbacks of orthogonal frequency division multiplexing (OFDM) is the high peak-to-average power ratio (PAPR) of the OFDM signal. How to reduce the PAPR is the key to applying the technology of OFDM efficiently. In this paper, companding transform method is presented. The performance of the systerm BER is analysised, then PAPR is reduced by using the method through simulation. Simulation results have shown that the proposed methods are very effective and flexible to improve PAPR performance in the OFDM based on the performance of the system BER is not changed very much compare to the original system.

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Periodical:

Edited by:

Zhixiang Hou

Pages:

1484-1488

DOI:

10.4028/www.scientific.net/AMM.128-129.1484

Citation:

X. Y. Zhang et al., "The Research of Companding Transform for Peak-to-Average Power Ratio Reduction of OFDM Signals", Applied Mechanics and Materials, Vols. 128-129, pp. 1484-1488, 2012

Online since:

October 2011

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$35.00

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