The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems
Slanting of subarrays in a hybrid MIMO configuration is known to mitigate loss from directional antenna elements typical of mmWave integrated circuit arrays, under the line-of-sight (LOS) plane wave model (PWM) of propagation. This paper considers optimal slanting of subarrays under the spherical wa...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10182231/ |
| _version_ | 1797774881999290368 |
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| author | Edith Ghunney Mary Ann Weitnauer |
| author_facet | Edith Ghunney Mary Ann Weitnauer |
| author_sort | Edith Ghunney |
| collection | DOAJ |
| description | Slanting of subarrays in a hybrid MIMO configuration is known to mitigate loss from directional antenna elements typical of mmWave integrated circuit arrays, under the line-of-sight (LOS) plane wave model (PWM) of propagation. This paper considers optimal slanting of subarrays under the spherical wave model (SWM) of propagation, because the SWM is known to be more appropriate than PWM for short-range LOS MIMO channels. The capacity of MIMO under the LOS SWM is known to depend on subarray spacing for non-slanted subarrays, so this paper derives the optimal spacing for slanted subarrays, which is shown to be the same as for non-slanted subarrays. The paper goes on to show that slanting only degrades hybrid MIMO capacity under the SWM model. By comparing the capacities under the PWM and SWM, the authors explain why slanting is beneficial under one model and not under the other. |
| first_indexed | 2024-03-12T22:27:36Z |
| format | Article |
| id | doaj.art-657636378f214171b6ad759dd561d436 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-12T22:27:36Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-657636378f214171b6ad759dd561d4362023-07-21T23:01:12ZengIEEEIEEE Access2169-35362023-01-0111725927260010.1109/ACCESS.2023.329525610182231The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave SystemsEdith Ghunney0https://orcid.org/0009-0001-6007-0620Mary Ann Weitnauer1School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USASchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USASlanting of subarrays in a hybrid MIMO configuration is known to mitigate loss from directional antenna elements typical of mmWave integrated circuit arrays, under the line-of-sight (LOS) plane wave model (PWM) of propagation. This paper considers optimal slanting of subarrays under the spherical wave model (SWM) of propagation, because the SWM is known to be more appropriate than PWM for short-range LOS MIMO channels. The capacity of MIMO under the LOS SWM is known to depend on subarray spacing for non-slanted subarrays, so this paper derives the optimal spacing for slanted subarrays, which is shown to be the same as for non-slanted subarrays. The paper goes on to show that slanting only degrades hybrid MIMO capacity under the SWM model. By comparing the capacities under the PWM and SWM, the authors explain why slanting is beneficial under one model and not under the other.https://ieeexplore.ieee.org/document/10182231/Antenna radiation patternslinear antenna arraysmillimeter wave technologyMIMO communicationphased arrayswireless communication |
| spellingShingle | Edith Ghunney Mary Ann Weitnauer The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems IEEE Access Antenna radiation patterns linear antenna arrays millimeter wave technology MIMO communication phased arrays wireless communication |
| title | The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems |
| title_full | The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems |
| title_fullStr | The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems |
| title_full_unstemmed | The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems |
| title_short | The Effects of Channel Model and Spacing on Slanted Subarrays in Single-User MIMO mmWave Systems |
| title_sort | effects of channel model and spacing on slanted subarrays in single user mimo mmwave systems |
| topic | Antenna radiation patterns linear antenna arrays millimeter wave technology MIMO communication phased arrays wireless communication |
| url | https://ieeexplore.ieee.org/document/10182231/ |
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