Novel power efficient optical OFDM based on Hartley transform for intensity-modulated direct-detection systems

M Svaluto Moreolo, R Muñoz… - Journal of lightwave …, 2010 - opg.optica.org
We present a novel optical orthogonal frequency division multiplexing (O-OFDM) scheme,
suitable for intensity-modulated direct-detection systems, where the modulation …

A Generalized Multicarrier Communication System-Part II: The T-OFDM System

I Ali - International Journal of Computer Science & Network …, 2024 - koreascience.kr
Precoding of the orthogonal frequency division multiplexing (OFDM) with Walsh Hadamard
transform (WHT) is known in the literature. Instead of performing WHT precoding and inverse …

Low complexity PAPR reduction techniques for clipping and quantization noise mitigation in direct-detection O-OFDM systems

L Nadal, MS Moreolo, JM Fàbrega, G Junyent - Optical Fiber Technology, 2014 - Elsevier
We present different distortionless peak-to-average power ratio (PAPR) reduction
techniques that can be easily applied, without any symmetry restriction, in direct-detection …

Performance analysis of DHT-based optical OFDM using large-size constellations in AWGN

MS Moreolo - IEEE Communications Letters, 2011 - ieeexplore.ieee.org
We demonstrate that optical OFDM (O-OFDM) based on discrete Hartley transform (DHT)
can be used with large-size constellations, furnishing alternative simplified schemes suitable …

A Generalized Multicarrier Communication System-Part III: Dual Symbol Superposition Block Carrier Transmission with Frequency Domain Equalization

I Ali - International Journal of Computer Science & Network …, 2024 - koreascience.kr
This paper proposes dual symbol superposition block carrier transmission with frequency
domain equalization (DSS-FDE) system. This system is based upon χ-transform matrix …

Experimental demonstration of a cost-effective bit rate variable IM/DD optical OFDM with reduced guard band

MS Moreolo, JM Fabrega, FJ Vílchez, L Nadal… - Optics …, 2012 - opg.optica.org
We experimentally demonstrate an intensity modulated and direct detection optical OFDM
with variable bit rate from 5 Gb/s to 9 Gb/s using BPSK format. A fast processing based on …

DHT-based OFDM system for passband transmission over frequency-selective channel

CK Jao, SS Long, MT Shiue - IEEE Signal Processing Letters, 2010 - ieeexplore.ieee.org
In this letter, a multicarrier modulation transceiver based on discrete Hartley transform (DHT)
is investigated. The diagonalization of channel matrix is an important feature for the DFT …

DHT-Based OFDM Transmitter and Receiver

MT Shiue, CK Jao, SS Long, CL Wey - US Patent App. 12/756,232, 2011 - Google Patents
Abstract A DHT-based OFDM transmitter and receiver use discrete Hartley transform to
implement multicarrier transmission. A transmission terminal (or a receiving terminal) of a …

Performance comparison of FFT and DHT hybrid PLC-VLC systems based on DCO-OFDM in impulsive noise

I Mapfumo, T Shongwe - 2020 30th international conference …, 2020 - ieeexplore.ieee.org
To enhance the transmission capacity of communication systems, Power Line
Communication (PLC) and Visible Light Communication (VLC) can be cascaded to form a …

On the DHT-based multicarrier tranceiver over multipath fading channel

CK Jao, SS Long, MT Shiue - 2009 IEEE 20th International …, 2009 - ieeexplore.ieee.org
In this paper, an Multicarrier modulation (MCM) transceiver based on discrete Hartley
transform (DHT) is investigated. Instead of conventional discrete Fourier transform (DFT) …