Terahertz line-of-sight MIMO communication: Theory and practical challenges

Heedong Do; Sungmin Cho; Jeonghun Park; Ho Jin Song; Namyoon Lee; Angel Lozano

doi:10.1109/MCOM.001.2000714

Terahertz line-of-sight MIMO communication: Theory and practical challenges

Heedong Do, Sungmin Cho, Jeonghun Park, Ho Jin Song, Namyoon Lee, Angel Lozano

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A relentless trend in wireless communications is the hunger for bandwidth, and fresh bandwidth is only to be found at ever higher frequencies. While 5G systems are seizing the mmWave band, the attention of researchers is shifting already to the terahertz range. In that distant land of tiny wavelengths, antenna arrays can serve for more than power-enhancing beamforming. Defying lower-frequency wisdom, spatial multiplexing becomes feasible even in line-of-sight conditions. This article reviews the underpinnings of this phenomenon, and it surveys recent results on the ensuing information-theoretic capacity. Reconfigurable array architectures are put forth that can closely approach such capacity, practical challenges are discussed, and supporting experimental evidence is presented.

Original language	English
Pages (from-to)	104-109
Number of pages	6
Journal	IEEE Communications Magazine
Volume	59
Issue number	3
DOIs	https://doi.org/10.1109/MCOM.001.2000714
Publication status	Published - 2021

Bibliographical note

Funding Information:
This work was supported by the Samsung Research Fund ing and Incubation Center of Samsung Electronics under Project SRFC-IT1702-04, by the Basic Science Research Programs under the National Research Foundation of Korea (NRF) through the Ministry of Science and ICT under NRF2020R1C1C1013381, and by the European Research Council H2020/ERC grant agreement 694974 and the ICREA Academia program.

Funding Information:
This work was supported by the Samsung Research Funding and Incubation Center of Samsung Electronics under Project SRFC-IT1702-04, by the Basic Science Research Programs under the National ResearchFoundationofKorea (NRF) through the Ministry of Science and ICT under NRF2020R1C1C1013381, andbytheEuropeanResearch Council H2020/ERC grant agreement 694974 and the ICREA Academia program.

Publisher Copyright:
© 2021 IEEE.

All Science Journal Classification (ASJC) codes

Computer Science Applications
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1109/MCOM.001.2000714

Cite this

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abstract = "A relentless trend in wireless communications is the hunger for bandwidth, and fresh bandwidth is only to be found at ever higher frequencies. While 5G systems are seizing the mmWave band, the attention of researchers is shifting already to the terahertz range. In that distant land of tiny wavelengths, antenna arrays can serve for more than power-enhancing beamforming. Defying lower-frequency wisdom, spatial multiplexing becomes feasible even in line-of-sight conditions. This article reviews the underpinnings of this phenomenon, and it surveys recent results on the ensuing information-theoretic capacity. Reconfigurable array architectures are put forth that can closely approach such capacity, practical challenges are discussed, and supporting experimental evidence is presented.",

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Terahertz line-of-sight MIMO communication: Theory and practical challenges

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Bibliographical note

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