A Tutorial on Holographic MIMO Communications—Part II: Performance Analysis and Holographic Beamforming
Jiancheng AnEngineering Product Development Pillar, Singapore University of Technology and Design, Tampines, SingaporeChau YuenSchool of Electrical and Electronics Engineering, Nanyang Technological University, Jurong West, SingaporeChongwen HuangZhejiang–Singapore Innovation and AI Joint Research Laboratory, College of Information Science and Electronic Engineering, and the Zhejiang Provincial Key Laboratory of Information Processing, Communications and Networks (IPCAN), Zhejiang University, Hangzhou, ChinaMérouane DebbahCenter for 6G Technology, Khalifa University of Science and Technology, Abu Dhabi, United Arab EmiratesH. Vincent PoorDepartment of Electrical and Computer Engineering, Princeton University, Princeton, NJ, USALajos HanzoSchool of Electronics and Computer Science, University of Southampton, Southampton, U.K
2023en
ABI
Аннотация
As Part II of a three-part tutorial on holographic multiple-input multiple-output (HMIMO), this Letter focuses on the state-of-the-art in performance analysis and on holographic beamforming for HMIMO communications. We commence by discussing the spatial degrees of freedom (DoF) and ergodic capacity of a point-to-point HMIMO system, based on the channel model presented in Part I. Additionally, we also consider the sum-rate analysis of multi-user HMIMO systems. Moreover, we review the recent progress in holographic beamforming techniques developed for various HMIMO scenarios. Finally, we evaluate both the spatial DoF and the channel capacity through numerical simulations.
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