High-Bandwidth Coherent OFDM-Nyquist-TDM Transceiver With Low-Bandwidth Electronics

Y Mandalawi, K Singh, MI Hosni, J Meier… - IEEE …, 2023 - ieeexplore.ieee.org
We present a broadband coherent orthogonal frequency-division multiplexing (OFDM)
transceiver based on orthogonal sampling and low bandwidth electronic analog signal …

Selection of optical filters for optimization of different parameters in a coherent optical 16-QAM CO-OFDM modulation system

V Kaushik, H Saini - Journal of Optics, 2023 - Springer
The use of orthogonal frequency division multiplexing (OFDM) modulation for optical
communication plays a significant role in improving the overall efficiency of the system. But …

Mitigation of fiber impairments by developing a novel coherent optical 16-QAM OFDM modulation technique

V Kaushik, H Saini - Journal of Optics, 2023 - Springer
Abstract CO-OFDM (Coherent Optical Orthogonal Frequency Division Multiplexing)
modulation techniques play an important role in today's optical communication. But the …

QCOB: a novel QPSK coherent optical OFDM modulation technique for mitigation of fiber impairments

V Kaushik, H Saini - Journal of Optical Communications, 2022 - degruyter.com
Modern optical communication heavily relies on coherent optical orthogonal frequency
division multiplexing (CO-OFDM) modulation. But the usage of optical OFDM for fiber optic …

A novel PAPR reduction scheme based on nonlinear real-valued support vector regression for CO-OFDM systems

T Zhang, Z Tong, H Wang, W Zhang, Y Bai - Optics Communications, 2024 - Elsevier
Coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems suffer from
the high peak-to-average ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) …

A low-phase-noise dual-polarization 16-QAM CO-OFDM modulation system with a hybrid optical filter

V Kaushik, H Saini - Journal of Optics, 2024 - Springer
Phase noise is a crucial impairment in coherent optical communication. In this paper, a dual-
polarization 16 quadrature amplitude modulation coherent optical orthogonal frequency …

Suitability analysis of optical filters for enhancing performance parameters in a QPSK CO-OFDM modulation system

V Kaushik, H Saini - Journal of Optical Communications, 2024 - degruyter.com
Optical filtering affects the fiber impairments in a fiber optic transmission system and its
overall efficiency. The fiber impairments like attenuation, dispersion, and nonlinearities are …

[PDF][PDF] Highly accurate technique for CO-OFDM channel estimation technique using extreme learning machine (ELM)

NM Joseph, C Puttamadappa - WSEAS Trans. on Electronics, 2023 - wseas.com
In wireless systems, channel estimation is considered a problematic technology, due to the
fact of the difference in time between wireless channels and the noise effect. Orthogonal …

A Novel PAPR Reduction Scheme Using ISLM Cascading Neural Network-Based Companding Algorithm for CO-OFDM Systems

Z Tong, T Zhang, N Zhang, W Zhang… - 2023 21st International …, 2023 - ieeexplore.ieee.org
In coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems, the high
peak-average-power ratio (PAPR) is the major disadvantage that impacts the system …