Quaternion Fourier transform on quaternion fields and generalizations

EMS Hitzer - Advances in Applied Clifford Algebras, 2007 - Springer
We treat the quaternionic Fourier transform (QFT) applied to quaternion fields and
investigate QFT properties useful for applications. Different forms of the QFT lead us to …

Hadamard-coded modulation for visible light communications

M Noshad, M Brandt-Pearce - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Visible light communication (VLC) systems using the indoor lighting system to also provide
downlink communications require high-average optical powers to satisfy the illumination …

A novel hybrid secure method based on DNA encoding encryption and spiral scrambling in chaotic OFDM-PON

Y Xiao, Y Chen, C Long, J Shi, J Ma… - IEEE Photonics …, 2020 - ieeexplore.ieee.org
This paper proposes a novel hybrid secure method based on improved deoxyribonucleic
acid (DNA) encoding encryption and spiral scrambling in chaotic OFDM-PON for enhancing …

Demonstration of real-time software reconfigurable dynamic power-and-subcarrier allocation scheme for OFDM-NOMA-based multi-user visible light communications

J Shi, Y Hong, R Deng, J He, LK Chen… - Journal of Lightwave …, 2019 - opg.optica.org
We propose and demonstrate a real-time software reconfigurable dynamic power-and-
subcarrier allocation scheme for orthogonal frequency division multiplexing based non …

PAPR reduction based on chaos combined with SLM technique in optical OFDM IM/DD system

Y Xiao, M Chen, F Li, J Tang, Y Liu, L Chen - Optical Fiber Technology, 2015 - Elsevier
This paper proposes a method to decrease the PAPR of 16-quadrature-amplitude-
modulation (16QAM) orthogonal-frequency-division-multiplexing (OFDM) signal. The …

[图书][B] Visible Light Communication: Comprehensive Theory and Applications with MATLAB®

S Vappangi, VV Mani, M Sellathurai - 2021 - taylorfrancis.com
The field of visible light communication (VLC) has diverse applications to the end user
including streaming audio, video, high-speed data browsing, voice over internet and online …

A bit-serial pipelined architecture for high-performance DHT computation in quantum-dot cellular automata

V Pudi, K Sridharan - IEEE Transactions on Very Large Scale …, 2014 - ieeexplore.ieee.org
In this brief, we consider quantum-dot cellular automata (QCA) realization of the discrete
Hadamard transform (DHT). An analysis of a full-parallel solution based on efficient multibit …

A constrained optimization approach to compander design for OFDM PAPR reduction

SP DelMarco - IEEE Transactions on Broadcasting, 2017 - ieeexplore.ieee.org
In this paper, we derive new multi-component companders for reducing peak-to-average
power ratio (PAPR) in orthogonal frequency-division multiplexing signals, using a …

Reduction of the PAPR in OFDM systems by intelligently applying both PTS and SLM algorithms

C Duanmu, H Chen - Wireless personal communications, 2014 - Springer
The orthogonal frequency division multiplex (OFDM) technique, which is used in the 4G
communications, has a shortcoming of having a high peak to average power ratio (PAPR) …

A low complexity PAPR reduction method based on FWFT and PEC for OFDM systems

C Kang, Y Liu, M Hu, H Zhang - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Orthogonal frequency division multiplexing (OFDM) is a multi-carrier modulation technique
for transmitting large volumes of digital data but suffers high peak-to-average power ratio …