Search Results for author: Li You

Found 9 papers, 0 papers with code

Ubiquitous Integrated Sensing and Communications for Massive MIMO LEO Satellite Systems

no code implementations6 Jul 2024 Li You, Yongxiang Zhu, Xiaoyu Qiang, Christos G. Tsinos, Wenjin Wang, Xiqi Gao, Björn Ottersten

The next sixth generation (6G) networks are envisioned to integrate sensing and communications in a single system, thus greatly improving spectrum utilization and reducing hardware costs.

Polar-Coded Tensor-Based Unsourced Random Access with Soft Decoding

no code implementations24 Jun 2024 Jiaqi Fang, Yan Liang, Gangle Sun, Hongwei Hou, Yafei Wang, Li You, Wenjin Wang

The unsourced random access (URA) has emerged as a viable scheme for supporting the massive machine-type communications (mMTC) in the sixth generation (6G) wireless networks.

Decoder Tensor Decomposition

An I2I Inpainting Approach for Efficient Channel Knowledge Map Construction

no code implementations14 Jun 2024 Zhenzhou Jin, Li You, Jue Wang, Xiang-Gen Xia, Xiqi Gao

Specifically, we first view the channel knowledge as a 2-D image and transform the CKM construction problem into an image-to-image (I2I) inpainting task, which predicts the channel knowledge at a specific location by recovering the corresponding pixel value in the image matrix.

Joint Channel Estimation and Prediction for Massive MIMO with Frequency Hopping Sounding

no code implementations13 Jun 2024 Yiming Zhu, Jiawei Zhuang, Gangle Sun, Hongwei Hou, Li You, Wenjin Wang

This paper aims to investigate joint channel estimation and prediction (JCEP) for massive MIMO with frequency hopping sounding (FHS).

Precoder Design for User-Centric Network Massive MIMO with Matrix Manifold Optimization

no code implementations11 Apr 2024 Rui Sun, Li You, An-An Lu, Chen Sun, Xiqi Gao, Xiang-Gen Xia

In this paper, we investigate the precoder design for user-centric network (UCN) massive multiple-input multiple-output (mMIMO) downlink with matrix manifold optimization.

Computational Efficiency

Downlink Transmit Design for Massive MIMO LEO Satellite Communications

no code implementations12 Aug 2020 Ke-Xin Li, Li You, Jiaheng Wang, Xiqi Gao, Christos G. Tsinos, Symeon Chatzinotas, Björn Ottersten

We show that, in this case, the design of precoding vectors can be simplified into that of scalar variables, for which an effective algorithm is developed.

Network Massive MIMO Transmission Over Millimeter-Wave and Terahertz Bands: Mobility Enhancement and Blockage Mitigation

no code implementations6 May 2020 Li You, Xu Chen, Xiaohang Song, Fan Jiang, Wenjin Wang, Xiqi Gao, Gerhard Fettweis

Based on these insights, the network massive MIMO precoding design is reduced to a network sum-rate maximization problem with respect to beam domain power allocation.

Spectral Efficiency and Energy Efficiency Tradeoff in Massive MIMO Downlink Transmission with Statistical CSIT

no code implementations7 Apr 2020 Li You, Jiayuan Xiong, Alessio Zappone, Wenjin Wang, Xiqi Gao

As a key technology for future wireless networks, massive multiple-input multiple-output (MIMO) can significantly improve the energy efficiency (EE) and spectral efficiency (SE), and the performance is highly dependant on the degree of the available channel state information (CSI).

Learning to Localize: A 3D CNN Approach to User Positioning in Massive MIMO-OFDM Systems

no code implementations27 Oct 2019 Chi Wu, Xinping Yi, Wenjin Wang, Li You, Qing Huang, Xiqi Gao

In this paper, we consider the user positioning problem in the massive multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system with a uniform planner antenna (UPA) array.

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