9 papers · 1 filter
Uplink SCMA-empowered Uncoordinated Random Access for Future mMTC
Pengyu Gao, Qu Luo, Jing Zhu +3
In this paper, a novel uncoordinated random access (URA) protocol is presented to address the pressing demand for massive connectivity with low access latency in future massive mac…
Widely Linear Augmented Extreme Learning Machine Based Impairments Compensation for Satellite Communications
Yang Luo, Arunprakash Jayaprakash, Gaojie Chen +3
Satellite communications are crucial for the evolution beyond fifth-generation networks. However, the dynamic nature of satellite channels and their inherent impairments present si…
Advanced Codebook Design for SCMA-aided NTNs With Randomly Distributed Users
Tianyang Hu, Qu Luo, Lixia Xiao +3
In this letter, a novel class of sparse codebooks is proposed for sparse code multiple access (SCMA) aided non-terrestrial networks (NTN) with randomly distributed users characteri…
Amplitude-Domain Reflection Modulation for Active RIS-Assisted Wireless Communications
Jing Zhu, Qu, Luo +5
In this paper, we propose a novel active reconfigurable intelligent surface (RIS)-assisted amplitude-domain reflection modulation (ADRM) transmission scheme, termed as ARIS-ADRM. T…
Joint Sparse Graph for Enhanced MIMO-AFDM Receiver Design
Qu Luo, Jing Zhu, Zilong Liu +4
Affine frequency division multiplexing (AFDM) is a promising chirp-assisted multicarrier waveform for future high-mobility communications. This paper is devoted to enhanced receive…
Single Sparse Graph Enhanced Expectation Propagation Algorithm Design for Uplink MIMO-SCMA
Qu Luo, Jing Zhu, Gaojie Chen +2
Sparse code multiple access (SCMA) and multiple input multiple output (MIMO) are considered as two efficient techniques to provide both massive connectivity and high spectrum effic…