Search Results for author: Songjie Yang

Found 14 papers, 1 papers with code

RIS-Enabled Joint Near-Field 3D Localization and Synchronization in SISO Multipath Environments

no code implementations11 Mar 2024 Han Yan, Hua Chen, Wei Liu, Songjie Yang, Gang Wang, Chau Yuen

Reconfigurable Intelligent Surfaces (RIS) show great promise in the realm of 6th generation (6G) wireless systems, particularly in the areas of localization and communication.

CRB Minimization for RIS-aided mmWave Integrated Sensing and Communications

no code implementations2 Jan 2024 Wanting Lyu, Songjie Yang, Yue Xiu, Ya Li, Hongjun He, Chau Yuen, Zhongpei Zhang

In this paper, reconfigurable intelligent surface (RIS) is employed in a millimeter wave (mmWave) integrated sensing and communications (ISAC) system.

Mutual Information-Based Integrated Sensing and Communications: A WMMSE Framework

1 code implementation19 Oct 2023 Yizhou Peng, Songjie Yang, Wanting Lyu, Ya Li, Hongjun He, Zhongpei Zhang, Chadi Assi

In this letter, a weighted minimum mean square error (WMMSE) empowered integrated sensing and communication (ISAC) system is investigated.

Enhancing Near-Field Sensing and Communications with Sparse Arrays: Potentials, Challenges, and Emerging Trends

no code implementations15 Sep 2023 Songjie Yang, Wanting Lyu, Zhongpei Zhang, Chau Yuen

Nevertheless, XL-arrays introduce deviations in electromagnetic propagation compared to traditional arrays, fundamentally challenging the assumption with the planar-wave model.

Hybrid NOMA assisted Integrated Sensing and Communication via RIS

no code implementations12 Sep 2023 Wanting Lyu, Yue Xiu, Xinyang Li, Songjie Yang, Phee Lep Yeoh, Yonghui Li, Zhongpei Zhang

Furthermore, the trade-off between sensing and communication is analyzed and demonstrated in the simulation results.

Performance Bounds for Near-Field Localization with Widely-Spaced Multi-Subarray mmWave/THz MIMO

no code implementations12 Sep 2023 Songjie Yang, Xinyi Chen, Yue Xiu, Wanting Lyu, Zhongpei Zhang, Chau Yuen

By employing the Riemann sum, closed-form CRB expressions are derived for the spherical wavefront-based WSMS (SW-WSMS).

Joint Localization and Beamforming for Reconfigurable Intelligent Surface Aided 5G mmWave Communication Systems

no code implementations27 Oct 2022 Yunis Xanthos, Wanting Lyu, Songjie Yang, Chadi Assi, Xianbing Zou, Ning Wei

Reconfigurable intelligent surface (RIS) is an attractive technology to improve the transmission rate of millimetre-wave (mmWave) communication systems.

Energy-Efficient Cell-Free Network Assisted by Hybrid RISs

no code implementations4 Oct 2022 Wanting Lyu, Yue Xiu, Songjie Yang, Chau Yuen, Zhongpei Zhang

The proposed hybrid RISs schemes can achieve 92% of the sum rate but 188% of EE of active RISs schemes.

Bayesian Optimization-Based Beam Alignment for MmWave MIMO Communication Systems

no code implementations28 Jul 2022 Songjie Yang, Baojuan Liu, Zhiqin Hong, Zhongpei Zhang

In this work, we investigate the issue of mmWave BA and present a novel beam alignment scheme on the basis of a machine learning strategy, Bayesian optimization (BO).

Bayesian Optimization Thompson Sampling

Channel Estimation for Reconfigurable Intelligent Surface-Assisted Cell-Free Communications

no code implementations28 Jul 2022 Songjie Yang, Chenfei Xie, Mingwei Wang, Zhongpei Zhang

Recent research has focused on reconfigurable intelligent surface (RIS)-assisted cell-free systems with the goal of enhancing coverage and lowering the cost of cell-free networks.

Compressive Sensing

Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems

no code implementations28 Jul 2022 Songjie Yang, Chenfei Xie, Dongli Wang, Zhongpei Zhang

Given the high degree of computational complexity of the channel estimation technique based on the conventional one-dimensional (1-D) compressive sensing (CS) framework employed in the hybrid beamforming architecture, this study proposes two low-complexity channel estimation strategies.

Compressive Sensing

Low-complexity Sparse Array Synthesis Based on Off-grid Compressive Sensing

no code implementations28 Jul 2022 Songjie Yang, Baojuan Liu, Zhiqin Hong, Zhongpei Zhang

A novel sparse array synthesis method for non-uniform planar arrays is proposed, which belongs to compressive sensing (CS)-based systhesis.

Compressive Sensing Position

Weighted Sum Age of Information Minimization in Wireless Networks with Aerial IRS

no code implementations9 Mar 2022 Wanting Lyu, Yue Xiu, Songjie Yang, Phee Lep Yeoh, Yonghui Li

In this letter, we analyze a terrestrial wireless communication network assisted by an aerial intelligent reflecting surface (IRS).

Scheduling

An Off-grid Compressive Sensing Strategy for the Subarray Synthesis of Non-uniform Linear Arrays

no code implementations31 Dec 2021 Songjie Yang, Wanting Lyu, Zhongpei Zhang

Finally, our simulation results reveal that it is of paramount significance to optimize antenna elements positions for the subarray synthesis performance on the one hand and demonstrate the excellent performances of proposed schemes in comparison with other competitive state-of-the-art subarray synthesis methods on the other hand.

Compressive Sensing

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