6G indoor network enabled by photonics-and electronics-based sub-THz technology

SR Moon, ES Kim, M Sung, HY Rha, ES Lee… - Journal of Lightwave …, 2022 - opg.optica.org
We propose an indoor network with a sub-terahertz-band wireless link for 6G applications. In
our proposed indoor network, an optical hub unit (OHU) that controls the entire system is …

A 262-GHz Wireless IFoF Uplink With Remote Down-Conversion Using Optically Generated Sub-THz LO

S Cho, SR Moon, M Sung, SH Cho… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
We experimentally demonstrate the feasibility of a 262-GHz wireless intermediate frequency
(IF)-over-fiber (IFoF) uplink with frequency down-conversion at a remote antenna unit (RAU) …

Reduction of intercarrier interference based on window shaping in OFDM RoF systems

L Tao, J Yu, J Zhang, Y Shao… - IEEE Photonics …, 2013 - ieeexplore.ieee.org
In this letter, we theoretically investigate the intercarrier interference (ICI) that is induced by
carrier frequency offset (CFO) and sampling frequency offset (SFO) for orthogonal frequency …

Performance evaluation of 100 Gb/s 16-QAM Alamouti-coded optical coherent system

JY Oh, SR Moon, SH Chang… - 2022 13th International …, 2022 - ieeexplore.ieee.org
Alamouti polarization time block coding (PTBC) coherent optical technology has been
drawing attention as a technology for future optical access networks because it enables a …

Iterative carrier frequency offset estimation scheme for faster-than-Nyquist signaling systems

J Fan, Y Ren, X Luo, J Joung - IEEE Photonics Technology …, 2020 - ieeexplore.ieee.org
As a nonorthogonal mode, faster-than-Nyquist (FTN) signaling transmission can effectively
improve the spectrum efficiency of a system. However, FTN signaling inevitably causes inter …

Simple full-range carrier frequency offset estimation for high speed CO-OFDM

HY Rha, CJ Youn, ES Nam, HW Choi - Optics express, 2013 - opg.optica.org
We propose a simple, full-range carrier frequency offset (CFO) algorithm for coherent optical
orthogonal frequency division multiplexing (CO-OFDM) systems. By applying the Chinese …

Real-time digital signal processing for high-speed coherent optical OFDM synchronization

HY Rha, CJ Youn, YH Kwon, HW Choi - Journal of Lightwave …, 2015 - opg.optica.org
In high-speed coherent optical orthogonal frequency division multiplexing (CO-OFDM)
systems, wide range estimation of carrier frequency offset (CFO) and hardware-efficient …

Load-balancing in sparse matrix-vector multiplication

SG Nastea, O Frieder… - Proceedings of SPDP'96 …, 1996 - ieeexplore.ieee.org
We consider the load-balanced multiplication of a large sparse matrix with a large sequence
of vectors, on parallel computers. Due to the associated computational and inter-node …

Low-complexity and high-accuracy carrier frequency offset estimation for MB-OFDM UWB systems

XW Yin, HZ Tan - … and Intelligent Transportation Systems: Volume 1 …, 2017 - Springer
Most of carrier frequency offset (CFO) estimation methods for multi-band orthogonal
frequency-division multiplexing (MB-OFDM) based ultra-wideband (UWB) systems focus on …

Bidirectional Subcarrier PON System Adopting 2.5 Gb/s OFDM Signals with Continuous Phase Modulation and Demodulation

YF Shao, SK Wang, YX Luo, AR Wang… - … and Sensor Network, 2014 - ieeexplore.ieee.org
A novel PON scheme to adopt bidirectional subcarrier OFDM signals transceivers with
continuous phase modulation (CPM) and demodulation is proposed and experimentally …