Cubic metric reduction for DCO-OFDM visible light communication systems

JG Doblado, ACO Oria… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
Visible light communication (VLC) systems with a direct current-biased optical orthogonal
frequency division multiplexing (DCO-OFDM) architecture suffers from the well-known …

PAPR reduction of OFDM systems using H‐SLM method with a multiplierless IFFT/FFT technique

NA Sivadas - ETRI Journal, 2022 - Wiley Online Library
This study proposes a novel low‐complexity algorithm for computing inverse fast Fourier
transform (IFFT)/fast Fourier transform (FFT) operations in binary phase shift keying …

[HTML][HTML] Enhanced PAPR reduction in DCO-OFDM using multi-point constellations and DPSO optimization

V Aydin, G Hacioglu - Neural Computing and Applications, 2024 - Springer
Abstract DC-biased optical OFDM (DCO-OFDM) is a commonly used method of OFDM in
visible light communication (VLC). Unfortunately, VLC systems that use OFDM often …

A joint technique for sidelobe suppression and peak-to-average power ratio reduction in non-contiguous OFDM-based cognitive radio networks

NA Sivadas, SS Mohammed - International Journal of Electronics, 2017 - Taylor & Francis
In non-contiguous orthogonal frequency division multiplexing (NC-OFDM)-based interweave
cognitive radio networks, the sidelobe power of secondary users (SUs) must be strictly …

A novel CVM precoding scheme for PAPR reduction in OFDM transmissions

MM Hasan - Wireless networks, 2014 - Springer
High peak-to-average power ratio (PAPR) is still one of the major problems in orthogonal
frequency division multiplexing (OFDM). In this article, a new precoding method is proposed …

An improved selective mapping technique to reduce peak-to-average power ratio in SISO and SIMO OFDM systems without side information

AS Namitha, SM Sameer - Circuits, Systems, and Signal Processing, 2017 - Springer
Selective mapping (SLM) is an attractive method to reduce the peak-to-average power ratio
(PAPR) without causing any signal distortion in orthogonal frequency division multiplexing …

Twofold peak-to-average power ratio reduction technique in direct-detection optical orthogonal frequency division multiplexing system

L Guo, H Li, Y Liu, X Gong, Y Zhou - Optical Engineering, 2015 - spiedigitallibrary.org
High peak-to-average power ratio (PAPR) of the orthogonal frequency division multiplexing
(OFDM) signal is one of the limitations to the transmission performance of an optical OFDM …

PAR reduction in SU/MU-MIMO OFDM systems using OPF precoding over the nonlinearity of SSPA

MM Hasan - Wireless Personal Communications, 2015 - Springer
Orthogonal frequency division multiplexing (OFDM) system suffers from a high peak-to-
average (power) ratio (PAR) which leads to power inefficiency in radio frequency section …

Modified gamma correction companding for PAPR reduction in OFDM systems considering solid-state power amplifier and wireless channels

MM Hasan, MMH Foad - Circuits, Systems, and Signal Processing, 2018 - Springer
Orthogonal frequency division multiplexing is a special form of multicarrier modulation and
suffers from a very high peak-to-average power ratio (PAPR) that degrades overall …

IGCC for PAPR reduction in OFDM systems over the nonlinearity of SSPA and wireless fading channels

MM Hasan, MM Hasan Faisal - Circuits, Systems, and Signal Processing, 2016 - Springer
High peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing
(OFDM) systems seriously impacts power efficiency in radio frequency section due to the …