no code implementations • 8 Feb 2024 • Jianan Zhang, Rujing Xiong, Junshuo Liu, Tiebin Mi, Robert Caiming Qiu
Reconfigurable Intelligent Surfaces (RISs) exhibit promising enhancements in coverage and data rates for wireless communication systems, particularly in the context of 5G and beyond.
no code implementations • 10 Jan 2024 • Junshuo Liu, Yunlong Huang, Jianan Zhang, Rujing Xiong, Robert Caiming Qiu
Device-free human activity recognition plays a pivotal role in wireless sensing.
no code implementations • 19 Nov 2023 • Fuhai Wang, Chun Wang, Rujing Xiong, Zhengyu Wang, Tiebin Mi, Robert Caiming Qiu
In this paper, we propose a multi-RIS-aided wireless imaging framework in 3D facing the distributed placement of multi-sensor networks.
no code implementations • 15 Nov 2023 • Xuehui Dong, Xiang Ren, Bokai Lai, Rujing Xiong, Tiebin Mi, Robert Caiming Qiu
This paper explores the potential wireless communication applications of Reconfigurable Intelligent Surfaces (RIS) in reverberant wave propagation environments.
no code implementations • 10 Nov 2023 • Junshuo Liu, Fuhai Wang, Zhe Li, Rujing Xiong, Tiebin Mi, Robert Caiming Qiu
As a consequence, the accuracy of human activity recognition based on Wi-Fi signals is compromised.
no code implementations • 24 Oct 2023 • Rujing Xiong, Ke Yin, Tiebin Mi, Jialong Lu, Kai Wan, Robert Caiming Qiu
This framework focuses on designing explicit beamforming functionalities through optimization.
no code implementations • 27 Apr 2023 • Rujing Xiong, Jianan Zhang, Fuhai Wang, Zhengyu Wang, Xiang Ren, Junshuo Liu, Jialong Lu, Kai Wan, Tiebin Mi, Robert Caiming Qiu
The prototype undergoes rigorous empirical evaluation, encompassing multi-hop RIS signal amplification, image reconstruction, and real-world indoor signal coverage experiments.
no code implementations • 6 Mar 2023 • Rujing Xiong, Jianan Zhang, Xuehui Dong, Zhengyu Wang, Junshuo Liu, Wei Yang, Tiebin Mi, Wenbo Huang, Robert Caiming Qiu
The performance of multiple reconfigurable intelligent surfaces (RISs) receives limited attention in previous studies.
1 code implementation • 12 Nov 2022 • Xuehui Dong, Rujing Xiong, Tiebin Mi, Yuan Xie, Robert Caiming Qiu
This paper investigates the problem of maximizing the signal-to-noise ratio (SNR) in reconfigurable intelligent surface (RIS)-assisted MISO communication systems.
no code implementations • 8 Nov 2022 • Rujing Xiong, Xuihui Dong, Tiebin Mi, Kai Wan, Robert Caiming Qiu
Leveraging the inherent structure of this problem, we propose an efficient divide-and-sort (DaS) search algorithm to reach the global optimality for the maximization problem.
no code implementations • 3 Nov 2022 • Zhengyu Wang, Wei Yang, Tiebin Mi, Robert Caiming Qiu
To overcome the mutually coupled problem between the beamforming design at the RIS and DoA estimation, we explore the separable sparse representation structure and propose an alternating optimization algorithm.
1 code implementation • 12 Sep 2022 • Rujing Xiong, Xuehui Dong, Tiebin Mi, Robert Caiming Qiu
In recent years, a brand-new technology, reconfigurable intelligent surface (RIS) has been widely studied for reconfiguring the wireless propagation environment.
1 code implementation • 8 Aug 2022 • Tiebin Mi, Jianan Zhang, Rujing Xiong, Zhengyu Wang, Robert Caiming Qiu
The proposed models are employed to identify the advantages and limitations of three typical configurations.
1 code implementation • 15 Sep 2020 • Dongrui Liu, Chuanchuan Chen, Changqing Xu, Qi Cai, Lei Chu, Fei Wen, Robert Caiming Qiu
We prove that CAT is a rotation and translation-invariant transformation based on the theoretical analysis.
no code implementations • 25 Sep 2019 • Yuhang Zhang, Zhenwei Miao, Tiebin Mi, Robert Caiming Qiu
Three-dimensional data, such as point clouds, are often composed of three coordinates with few featrues.
no code implementations • 14 May 2019 • Lei Chu, Ling Pei, Husheng Li, Robert Caiming Qiu
This paper develops a new deep neural network optimized equalization framework for massive multiple input multiple output orthogonal frequency division multiplexing (MIMOOFDM) systems that employ low-resolution analog-to-digital converters (ADCs) at the base station (BS).
no code implementations • 31 Jan 2015 • Xing He, Robert Caiming Qiu, Qian Ai, Yinshuang Cao, Jie Gu, Zhijian Jin
With the statistical procedure, the proposed method is universal and fast; moreover, it is robust against traditional EED challenges (such as error accumulations, spurious correlations, and even bad data in core area).