A Tutorial on Holographic MIMO Communications--Part I: Channel Modeling and Channel Estimation

May 25, 2023 · The Cartographer · 🏛 IEEE Communications Letters

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"Title-pattern auto-detect: A Tutorial on Holographic MIMO Communications--Part I: Channel Modeling and Channel Estimation"

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Authors Jiancheng An, Chau Yuen, Chongwen Huang, Merouane Debbah, H. Vincent Poor, Lajos Hanzo arXiv ID 2305.15728 Category cs.IT: Information Theory Cross-listed eess.SP Citations 96 Venue IEEE Communications Letters Last Checked 1 day ago

Abstract

By integrating a nearly infinite number of reconfigurable elements into a finite space, a spatially continuous array aperture is formed for holographic multiple-input multiple-output (HMIMO) communications. This three-part tutorial aims for providing an overview of the latest advances in HMIMO communications. As Part I of the tutorial, this letter first introduces the fundamental concept of HMIMO and reviews the recent progress in HMIMO channel modeling, followed by a suite of efficient channel estimation approaches. Finally, numerical results are provided for demonstrating the statistical consistency of the new HMIMO channel model advocated with conventional ones and evaluating the performance of the channel estimators. Parts II and III of the tutorial will delve into the performance analysis and holographic beamforming, and detail the interplay of HMIMO with emerging technologies.