Chaotic Walsh–Hadamard transform for physical layer security in OFDM-PON

AAE Hajomer, X Yang, W Hu - IEEE Photonics Technology …, 2017 - ieeexplore.ieee.org
This letter proposes and experimentally demonstrates an approach to jointly enhance the
physical layer security and improve an optical orthogonal frequency division multiplexing (O …

Fiber-wireless transmission system of PDM-MIMO-OFDM at 100 GHz frequency

F Li, Z Cao, X Li, Z Dong, L Chen - Journal of lightwave …, 2013 - ieeexplore.ieee.org
We experimentally demonstrated a seamlessly integrated fiber-wireless system that delivers
30.67-Gb/s polarization division multiplexing-multiple input multiple output-orthogonal …

Secure OFDM transmission precoded by chaotic discrete Hartley transform

AAE Hajomer, X Yang, W Hu - IEEE Photonics Journal, 2017 - ieeexplore.ieee.org
We propose a chaotic discrete Hartley transform (DHT) to enhance the physicallayer security
and simultaneously improve the transmission performance of optical orthogonal frequency …

Experimental demonstration of real-time high-level QAM-encoded direct-detection optical OFDM systems

M Chen, J He, Q Fan, Z Dong, L Chen - Journal of Lightwave …, 2015 - opg.optica.org
In this paper, high-level quadrature amplitude modulation (QAM)-encoded real-time
orthogonal frequency division multiplexing (OFDM) transceivers are implemented with two …

Symbol synchronization and sampling frequency synchronization techniques in real-time DDO-OFDM systems

M Chen, J He, Z Cao, J Tang, L Chen, X Wu - Optics Communications, 2014 - Elsevier
In this paper, we propose and experimentally demonstrate a symbol synchronization and
sampling frequency synchronization techniques in real-time direct-detection optical …

High-frequency photonic vector signal generation employing a single phase modulator

J Xiao, Z Zhang, X Li, Y Xu, L Chen… - IEEE Photonics …, 2015 - ieeexplore.ieee.org
In this paper, we propose a novel and simple method to generate millimeter-wave vector
signals using only one phase modulator (PM) and phase-precoding technique, in which the …

Photonic vector signal generation at W-band employing an optical frequency octupling scheme enabled by a single MZM

X Li, J Yu, Z Zhang, J Xiao, GK Chang - Optics Communications, 2015 - Elsevier
We propose photonic vector signal generation at millimeter-wave (mm-wave) bands
enabled by a single Mach–Zehnder modulator (MZM) and phase-precoding technique …

Real-Time Generation and Reception of OFDM Signals for -Band RoF Uplink With Heterodyne Detection

M Chen, X Xiao, J Yu, X Li, F Li - IEEE Photonics Technology …, 2016 - ieeexplore.ieee.org
A field-programmable gate arrays-based real-time orthogonal frequency-division
multiplexing (OFDM) transceiver is implemented for the uplink of an X-band radio-overfiber …

OFDM vector signal generation based on optical carrier suppression

J Xiao, Z Zhang, X Li, Y Xu, L Chen… - IEEE Photonics …, 2015 - ieeexplore.ieee.org
We propose a novel method to generate photonic quadrature-phase-shift-keying (QPSK)
orthogonal frequency division multiplexing (OFDM) vector signal using only one Mach …

Pilot-aided sampling frequency offset estimation and compensation using DSP technique in DD-OOFDM systems

M Chen, J He, J Tang, L Chen - Optical Fiber Technology, 2014 - Elsevier
To improve the outage performance of an optical orthogonal frequency-division multiplexing
(OFDM) system under the frequency offset between the sampling clocks in the transmitter …