A novel OFDM autoencoder featuring CNN-based channel estimation for internet of vessels

B Lin, X Wang, W Yuan, N Wu - IEEE Internet of Things Journal, 2020 - ieeexplore.ieee.org
This article proposes a novel orthogonal frequency-division multiplexing (OFDM)
autoencoder featuring convolutional neural networks (CNNs)-based channel estimation for …

Model division multiple access for semantic communications

P Zhang, X Xu, C Dong, K Niu, H Liang, Z Liang… - Frontiers of Information …, 2023 - Springer
In a multi-user system, system resources should be allocated to different users. In traditional
communication systems, system resources generally include time, frequency, space, and …

RIS grouping based index modulation for 6G telecommunications

K Asmoro, SY Shin - IEEE Wireless Communications Letters, 2022 - ieeexplore.ieee.org
In this letter, a novel reconfigurable intelligent surface (RIS) grouping based index
modulation (RGB-IM) is proposed to enhance spectral efficiency and improve bit error rate …

Joint OAM multiplexing and OFDM in sparse multipath environments

L Liang, W Cheng, W Zhang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The emerging orbital angular momentum (OAM) based wireless communication is expected
to be a high spectrum-efficiency communication paradigm to solve the growing transmission …

Spatial multiplexing with limited RF chains: Generalized beamspace modulation (GBM) for mmWave massive MIMO

S Gao, X Cheng, L Yang - IEEE Journal on Selected Areas in …, 2019 - ieeexplore.ieee.org
Millimeter wave (mmWave) massive multiple-input multiple-output (mMIMO) has been
recognized as a promising candidate for 5G communications for its capability of supporting …

Joint code-frequency index modulation for IoT and multi-user communications

M Au, G Kaddoum, MS Alam, E Basar… - IEEE Journal of …, 2019 - ieeexplore.ieee.org
In this paper we propose a family of index modulation systems which can operate with low-
power consumption and low operational complexity for multi-user communication. This is …

Index modulation with circularly-shifted chirps for dual-function radar and communications

A Şahin, SSM Hoque, CY Chen - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this study, we propose index modulation (IM) with circularly-shifted chirps (CSCs)(CSC-
IM) for dual-function radar and communication (DFRC) systems. The proposed scheme …

Differential subcarrier index modulation

S Althunibat, R Mesleh, E Basar - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
One of the main challenges in orthogonal frequency division multiplexing (OFDM)-subcarrier
index modulation (SIM) systems is the huge amount of resources required to obtain channel …

Spread OFDM-IM with precoding matrix and low-complexity detection designs

T Van Luong, Y Ko - IEEE Transactions on Vehicular …, 2018 - ieeexplore.ieee.org
We propose a new spread orthogonal frequency division multiplexing with index modulation
(S-OFDM-IM), which employs precoding matrices such as Walsh-Hadamard (WH) and …

Spectrum-efficient distributed compressed sensing based channel estimation for OFDM systems over doubly selective channels

AN Uwaechia, NM Mahyuddin - IEEE Access, 2019 - ieeexplore.ieee.org
In this paper, we deal with channel estimation (CE) for high-mobility orthogonal frequency
division multiplexing (OFDM) systems. To make the numerous (unknown) estimation for the …