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Location Division Multiple Access for Near-Field Communications


Jan 22, 2023
Zidong Wu, Linglong Dai

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* Accepted by IEEE ICC 2023. This paper investigates the concept of location division multiple access (LDMA) to exploit extra spatial resources in distance domain for multiple access, exploring a new possibility to enhance spectrum efficiency. The journal version is: arXiv:2208.06349. Simulation codes are provided at: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html 

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Cross Far- and Near-field Wireless Communications in Terahertz Ultra-large Antenna Array Systems


Jan 08, 2023
Chong Han, Yuhang Chen, Longfei Yan, Zhi Chen, Linglong Dai

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Active RISs: Signal Modeling, Asymptotic Analysis, and Beamforming Design


Dec 31, 2022
Zijian Zhang, Linglong Dai, Xibi Chen, Changhao Liu, Fan Yang, Robert Schober, H. Vincent Poor

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* Accepted by IEEE GLOBECOM 2022. This paper includes a 64-element active RIS aided wireless communication prototype and the field test results. The journal version is at: arXiv:2103.15154. Simulation codes are provided at: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html 

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Enabling More Users to Benefit from Near-Field Communications: From Linear to Circular Array


Dec 30, 2022
Zidong Wu, Mingyao Cui, Linglong Dai

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* 12 pages, 11 figure. Simulation codes will be provided to reproduce the results in this paper: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html 

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Near-Field Wideband Channel Estimation for Extremely Large-Scale MIMO


Dec 16, 2022
Mingyao Cui, Linglong Dai

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* This paper has been accepted by Science China Information Sciences. Simulation codes will be provided to reproduce the results in this paper: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html 

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Multiple access for near-field communications: SDMA or LDMA?


Aug 12, 2022
Zidong Wu, Mingyao Cui, Linglong Dai

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* 10 pages, 7 figures. The simulation codes will be provided at: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html 

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Next Generation Reconfigurable MetaSurfaces: When Wave Propagation Control Meets Computing


Aug 09, 2022
Bo Yang, Xuelin Cao, Chongwen Huang, George C. Alexandropoulos, Linglong Dai, M'erouane Debbah, H. Vincent Poor, Chau Yuen

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Demo: Real-Time Semantic Communications with a Vision Transformer


May 08, 2022
Hanju Yoo, Taehun Jung, Linglong Dai, Songkuk Kim, Chan-Byoung Chae

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Double-Side Near-Field Channel Estimation for Extremely Large-Scale MIMO System


May 07, 2022
Yu Lu, Linglong Dai

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* 25 pages, 6 figures 

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Near-Field Rainbow: Wideband Beam Training for XL-MIMO


May 07, 2022
Mingyao Cui, Linglong Dai, Zhaocheng Wang, Shidong Zhou, Ning Ge

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* 29 pages, 10 figures. Simulation codes will be provided to reproduce the results presented in this paper after publication: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html 

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