Performance analysis of THz wireless systems in the presence of antenna misalignment and phase noise

EN Papasotiriou, AAA Boulogeorgos… - IEEE Communications …, 2020 - ieeexplore.ieee.org
This work aims to present the theoretical framework for the outage performance assessment
of the joint impact of antenna misalignment and local oscillator (LO) phase noise (PHN) on …

Relaxation of the radio-frequency linewidth for coherent-optical orthogonal frequency-division multiplexing schemes by employing the improved extreme learning …

D Zabala-Blanco, M Mora, CA Azurdia-Meza… - Symmetry, 2020 - mdpi.com
A coherent optical (CO) orthogonal frequency division multiplexing (OFDM) scheme gives a
scalable and flexible solution for increasing the transmission rate, being extremely robust to …

Carrierless Amplitude and Phase Modulation for Terahertz Communications

M Shehata, K Wang… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
Terahertz communications has been foreseen as a key enabler to the sixth generation (6G)
of wireless communications systems. However, the design of spectrally-efficient waveforms …

High sideband suppression silicon single sideband modulator integrated with a radio frequency branch line coupler

P Xia, H Yu, M Yang, N Cui, H Liao, Q Zhang… - Photonics …, 2023 - opg.optica.org
We demonstrate a single-chip silicon optical single sideband (OSSB) modulator composed
of a radio frequency (RF) branch line coupler (BLC) and a silicon dual-parallel Mach …

Novel phase and CFO estimation DSP for photonics-based sub-THz communication

HY Rha, SR Moon, JK Lee, SH Cho - Journal of Lightwave …, 2022 - opg.optica.org
Sub-terahertz (THz)-band communication system has drawn much attention as a promising
technology to provide future-proof high data rate services. In a photonics-based sub-THz …

Photonic sub-terahertz IM links: Comparison between double and single carrier modulation

L Gonzalez-Guerrero, M Ali, R Guzman… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Two different modulation schemes have been employed in photonic sub-THz systems to
transmit intensity modulated signals: the dual-carrier (DC) and single-carrier (SC) schemes …

Pilot-tone assisted 16-QAM photonic wireless bridge operating at 250 GHz

L Gonzalez-Guerrero, H Shams, I Fatadin… - Journal of Lightwave …, 2021 - opg.optica.org
A photonic wireless bridge operating at a carrier frequency of 250 GHz is proposed and
demonstrated. To mitigate the phase noise of the free-running lasers present in such a link …

A new scheme to generate multi-frequency mm-wave signals based on cascaded phase modulator and I/Q modulator

M Zhao, W Zhou, L Zhao, J Xiao, X Li… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
We propose a new scheme to generate multi-frequency vector mm-wave signals based on
cascaded phase modulator and I/Q modulator by adopting independent-sideband (ISB) …

Millimeter-wave over fiber integrated sensing and communication system using self-coherent OFDM

F Liu, P Li, N Zhong, X Deng, L Yan, W Pan, X Zou - Optics Express, 2024 - opg.optica.org
Orthogonal frequency-division multiplexing (OFDM) waveform is highly preferred as a dual-
function candidate for integrated sensing and communication (ISAC) systems. However, the …

RF pilot tone phase noise cancellation based on DD-MZM SSB modulation for optical heterodyne RoF link

Y Cai, X Gao, Y Ling, B Xu, K Qiu - Optics Communications, 2020 - Elsevier
The optical heterodyne radio over fiber (RoF) link using single-sideband (SSB) modulation
has advantage in system scalability, tunability, as well as resistance to chromatic dispersion …