Constant-envelope OFDM for power-efficient and nonlinearity-tolerant heterodyne MMW-RoF system with envelope detection

P Li, L Zhu, X Zou, W Pan, H Zhang… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
The radio over fiber (RoF) system using optical heterodyne (OH) for broadband up-
conversion and envelope detection (ED) for phase-noise-insensitive down-conversion …

Fiber nonlinearity equalizer based on support vector classification for coherent optical OFDM

T Nguyen, S Mhatli, E Giacoumidis… - IEEE Photonics …, 2016 - ieeexplore.ieee.org
A support vector machine (SVM)-based classification nonlinear equalizer (NLE) is
demonstrated, for the first time, in coherent optical orthogonal frequency-division …

PAPR and security in OFDM-PON via optimum block dividing with dynamic key and 2D-LASM

T Wu, C Zhang, H Wei, K Qiu - Optics express, 2019 - opg.optica.org
An approach for peak-to-average-power ratio (PAPR) reduction and security improvement in
an orthogonal frequency division multiplexing passive optical network (OFDM-PON) is …

Performance-enhanced direct detection optical OFDM transmission with CAZAC equalization

Z Feng, M Tang, S Fu, L Deng, Q Wu… - IEEE Photonics …, 2015 - ieeexplore.ieee.org
Direct detection optical orthogonal frequency division multiplexing (DDO-OFDM)
transmission with constant amplitude zero autocorrelation (CAZAC) sequence equalization …

The CESAE multiple objection optimization network of the ACO-OFDM VLC system

L Hao, P Cao, C Li, D Wang - Optics Communications, 2024 - Elsevier
Visible light communication (VLC) is a foreground technology in the sixth generation (6G)
communication system. Simultaneously deep learning network is a novel approach to …

Increasing the reach of visible light communication links through constant-envelope OFDM signals

H Camporez, W Costa, M Pontes, M Segatto… - Optics …, 2023 - Elsevier
The transmission of constant-envelope orthogonal frequency division multiplexing (CE-
OFDM) signals, based on electrical phase modulation, was shown to improve the tolerance …

Demonstration of DFT-spread 256QAM-OFDM signal transmission with cost-effective directly modulated laser

F Li, J Yu, Y Fang, Z Dong, X Li, L Chen - Optics express, 2014 - opg.optica.org
We experimentally demonstrated a 256-ary quadrature amplitude modulation (256QAM)
direct-detection optical orthogonal frequency division multiplexing (DDO-OFDM) …

SNR-enhanced and high-order frequency multiplied 64-QAM millimeter-wave signal generation enabled by MZM-based angle modulation

Z Li, Y **a, M Cheng, Q Yang, M Tang, D Liu, L Deng - Optics Letters, 2023 - opg.optica.org
We propose and experimentally demonstrate a novel scheme to generate ultrahigh-order
frequency multiplied millimeter-wave (mm-wave) signals with high fidelity enabled by angle …

Dispersion-tolerant DDO-OFDM system and simplified adaptive modulation scheme using CAZAC precoding

Z Feng, Q Wu, M Tang, R Lin, R Wang… - Journal of Lightwave …, 2016 - opg.optica.org
We apply the signal-and channel-independent constant amplitude zero autocorrelation
sequence (CAZAC) precoding technique to a bandwidth-limited longer-reach DDO-OFDM …

Chaotic Arnold transform and chirp matrix encryption scheme for enhancing the performance and security of OFDM-PON

M Bi, X Zhuo, G Yang, M Hu, B Fan, X Yang… - Optical Fiber …, 2019 - Elsevier
In this paper, we first propose and experimentally demonstrate an encryption scheme by
combining the chaotic Arnold transform (CAT) and chaotic chirp matrix (CCM) techniques in …