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A Piecewise Linear Companding Transform for PAPR Reduction of OFDM Signals With Companding Distortion Mitigation

IEEE Transactions on Broadcasting, 2014
Companding is a well-known technique for the peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) signals. However, as companding transform is an extra operation after the modulation of OFDM signals, companding schemes reduce PAPR at the expense of increasing the bit error rate (BER).
null Meixia Hu   +3 more
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New companding transform for PAPR reduction in OFDM

IEEE Communications Letters, 2010
High peak-to-average power ratio (PAPR) is a major drawback of orthogonal frequency division multiplexing (OFDM) systems. Among the various PAPR reduction techniques, companding transform appears attractive for its simplicity and effectiveness. This paper proposes a new companding algorithm.
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Reduction of PAPR of OFDM Signals Using Nonlinear Companding Transform

Wireless Personal Communications, 2012
In this paper, we propose and evaluate a novel nonlinear companding transform (NCT) scheme for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. The key idea of the proposed scheme is to transform the original Gaussian-distributed OFDM signals into a specific statistics form, whose target ...
Yong Wang   +3 more
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Nonlinear companding transform technique for reducing PAPR of ODFM signals

IEEE Transactions on Consumer Electronics, 2012
In this paper a novel nonlinear companding transform (NCT) scheme based on the inverse hyperbolic sine function is proposed for reducing the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. By introducing the variable companding parameters and an inflexion point in the companding function, it enables more
Y. Wang, L.-h. Wang, J.-h. Ge, B. Ai
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