13 papers
Tensor Decomposition Based Mixed-Field Sensing for XL-MIMO AFDM Systems
Lei Yao, Yin Xu, Aimin Tang +3
Integrated sensing and communications enabled by extremely large-scale MIMO (XL-MIMO) and affine frequency division multiplexing (AFDM) is a highly promising paradigm for vehicular…
Scalable GNN-Based Power Allocation for Rate-Splitting Cell-Free Massive MIMO Systems
Ruomeng Wang, Yin Xu, Aimin Tang +5
Cell-free massive multiple-input multiple-output (CF-mMIMO) systems provide enhanced coverage and capacity for next-generation wireless networks. However, CF-mMIMO systems face sig…
MCRB and MSE Analysis for Parameter Estimation in AFDM-ISAC Systems
Tianyao Ma, Aimin Tang, Yin Xu +3
Affine frequency division multiplexing (AFDM) is a promising waveform for integrated sensing and communication (ISAC). In AFDM systems, the complex gains, delays, and Doppler shift…
Node-Based Soft-Output Fast Successive Cancellation List Decoding of Polar Codes
Li Shen, Yongpeng Wu, Zhen Gao +4
The soft-output successive cancellation list (SO-SCL) decoder provides a methodology for estimating the a-posteriori probability log-likelihood ratios by only leveraging the conven…
Waveform Design for 6G ISAC Systems Under Full-Duplex Residual Self-Interference
Ning Wei, Aimin Tang, Yin Xu +1
In this paper, the waveform design for 6G integrated sensing and communication (ISAC) systems is investigated, with a particular focus on the practical limitations imposed by imper…
Low-Complexity Soft-Feedback Detector for AFDM Systems
Taohe Chen, Yin Xu, Tianyao Ma +4
Affine frequency division multiplexing (AFDM), an emerging multi-carrier modulation scheme, has garnered significant attention due to its resilience to Doppler shifts and capabilit…
Mixture of Semantics Transmission for Generative AI-Enabled Semantic Communication Systems
Junjie Ni, Tong Wu, Zhiyong Chen +3
In this paper, we propose a mixture of semantics (MoS) transmission strategy for wireless semantic communication systems based on generative artificial intelligence (AI). At the tr…
Decentralized Hybrid Precoding for Massive MU-MIMO ISAC
Jun Zhu, Yin Xu, Dazhi He +3
Integrated sensing and communication (ISAC) is a very promising technology designed to provide both high rate communication capabilities and sensing capabilities. However, in Massi…
Two Birds with One Stone: Multi-Task Semantic Communications Systems over Relay Channel
Yujie Cao, Tong Wu, Zhiyong Chen +3
In this paper, we propose a novel multi-task, multi-link relay semantic communications (MTML-RSC) scheme that enables the destination node to simultaneously perform image reconstru…
Soft-Output Fast Successive-Cancellation List Decoder for Polar Codes
Li Shen, Yongpeng Wu, Yin Xu +3
The soft-output successive cancellation list (SOSCL) decoder provides a methodology for estimating the a-posteriori probability log-likelihood ratios by only leveraging the convent…
Fluid Antenna Grouping Index Modulation Design for MIMO Systems
Xinghao Guo, Yin Xu, Dazhi He +3
Index modulation (IM) significantly enhances the spectral efficiency of fluid antennas (FAs) enabled multiple-input multiple-output (MIMO) systems, which is named FA-IM. However, d…
GLDPC-PC Codes for MIMO Systems with Iterative Detection and Decoding
Binghui Shi, Yongpeng Wu, Yin Xu +3
In this work, we propose the integration of GLDPC codes with short polar-like component codes, termed GLDPC codes with polar component codes (GLDPC-PC). This approach leverages the…
GLDPC-PC Codes: Channel Coding Towards 6G Communications
Li Shen, Yongpeng Wu, Yin Xu +3
The sixth generation (6G) wireless communication system will improve the key technical indicators by one to two orders of magnitude, and come with some new features. As a crucial t…