Results 141 to 147 of about 1,153 (147)
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2013 IEEE 11th Malaysia International Conference on Communications (MICC), 2013
The high peak-to-average power ratio (PAPR) is one major drawback of orthogonal frequency division multiplexing (OFDM) systems. In this paper, a new companding technique is proposed by using the combination of the discrete cosine transform (DCT) and two-piecewise companding (TPWC) transform.
Wisan Thititummajariya +1 more
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The high peak-to-average power ratio (PAPR) is one major drawback of orthogonal frequency division multiplexing (OFDM) systems. In this paper, a new companding technique is proposed by using the combination of the discrete cosine transform (DCT) and two-piecewise companding (TPWC) transform.
Wisan Thititummajariya +1 more
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Threshold-based piecewise companding transform for PAPR reduction in OFDM systems
The Journal of China Universities of Posts and Telecommunications, 2013Abstract Piecewise companding transform is a flexible and efficient way to solve the high peak-to-average power ratio (PAPR) problem for orthogonal frequency division multiplexing (OFDM) systems. A novel threshold-based piecewise companding transform is proposed in this paper.
Shu-hua LIU +3 more
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Flexible Nonlinear Companding Transform for Reducing PAPR of Multi-carrier Signals
2014 IEEE International Conference on Computer and Information Technology, 2014An efficient nonlinear companding transform (NCT) scheme is proposed for reducing the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. The proposed new scheme transforms the Gaussian-distributed signals into the specified statistics form based on a piecewise function.
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Nonlinear companding transforms for reducing the PAPR of OTFS signal
Physical Communication, 2022Hanumantharao Bitra +3 more
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A New OFDM System Based on Companding Transform Under Multipath Channel
2019Companding technology has been widely used for reducing PAPR of orthogonal frequency division multiplexing (OFDM) system, because of it low implementation complexity and the simple realization. But it also causes serious constellation diffusion and bit-error-rate (BER) under the multipath channel condition in traditional OFDM system. In order to reduce
Guangcheng Xie +5 more
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PAPR reduction of OFDM signals using CI coded companding transform
2014 International Conference on Communication and Signal Processing, 2014Srinivasarao Chintagunta, Sonali Padhi
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A Novel Companding Transform for Reduction of PAPR in OTFS Signal
Hanumantharao Bitra +2 moreopenaire +1 more source