OTFS: PAPR reduction using nonlinear companding transform
International Journal of Electronics Letters, 2023Hanumantharao Bitra, Niranjan Raj
openaire +1 more source
Low-voltage/low-power instantaneous companding circuits for continuous wavelet transform
International Conference on Neural Networks and Signal Processing, 2003. Proceedings of the 2003, 2003A general scheme for the VLSI implementation of high-frequency continuous wavelet transform is developed using instantaneous companding technique to get an elegant solution to the problem of maintaining dynamic range and high frequency operation under low power supply voltages.
null Qingxiu Huang, null Yigang He
openaire +1 more source
A hybrid companding transform technique for PAPR reduction of OFDM signals
2015 13th International Conference on Electromagnetic Interference and Compatibility (INCEMIC), 2015Orthogonal Frequency Division Multiplexing (OFDM) is an attractive technique for wireless communication applications. However, an OFDM signal has a large Peak-to-Average Power Ratio (PAPR), which can result in significant distortion when passed through a nonlinear device, such as a transmitter power amplifier. Number of techniques has been proposed for
D. Durga Prasad, M. V. Nageswara Rao
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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.
openaire +1 more source
Nonlinear companding transforms for reducing the PAPR of OTFS signal
Physical Communication, 2022Hanumantharao Bitra +3 more
openaire +1 more source
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
openaire +1 more source
Reduction of PAPR in OTFS using normalized μ ‐law and A ‐law companding transform
Internet Technology Letters, 2022HANUMANTHARAO BITRA +2 more
exaly
PAPR reduction of OFDM signals using CI coded companding transform
2014 International Conference on Communication and Signal Processing, 2014Srinivasarao Chintagunta, Sonali Padhi
openaire +1 more source