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 …
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 …
The emerging orbital angular momentum (OAM) based wireless communication is expected to be a high spectrum-efficiency communication paradigm to solve the growing transmission …
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 …
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 …
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 …
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 …
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 …
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 …