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

Xiu Yan Zhang; Wei Dong Wang; Lei Lei Pei; Yu Bo Duan

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

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 128-129The Research of Companding Transform for...

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

Abstract:

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:

Applied Mechanics and Materials (Volumes 128-129)

Pages:

1484-1488

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.128-129.1484

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Online since:

October 2011

Authors:

Xiu Yan Zhang, Wei Dong Wang, Lei Lei Pei, Yu Bo Duan

Keywords:

BER, Companding-Transform, Orthogonal Frequency Division Multiplexing (OFDM), PAPR

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