Interference mitigation using random antenna selection in millimeter wave beamforming system
Abstract In multi-user beamforming systems, the inter-user interference are controlled by spatial filtering. Since the implementation of digital beamforming is difficult due to high hardware cost of large array system, the analog beamforming system with one phase shifter at each antenna element is c...
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doaj-19b5c0c1c22d409090cb458844dc4c502020-11-25T01:54:13ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14992017-05-012017111610.1186/s13638-017-0868-5Interference mitigation using random antenna selection in millimeter wave beamforming systemWoochang Lim0Girim Kwon1Hyuncheol Park2Agency for Defense Development (ADD)School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)Abstract In multi-user beamforming systems, the inter-user interference are controlled by spatial filtering. Since the implementation of digital beamforming is difficult due to high hardware cost of large array system, the analog beamforming system with one phase shifter at each antenna element is considered with antenna selection scheme. However, the beamwidth is not sufficiently narrow to perfectly remove the interference due to limited size of antenna arrays. To mitigate the interference, we propose the random antenna selection system in millimeter wave channel. The random antenna selection expands the effective array size so that the beamwidth becomes narrow. We compare the beamwidth of conventional fixed antenna selection with random antenna selection and analyze the amount of interference for each selection scheme. Theoretical analysis and bit error rate simulation results indicate that the beamforming with random antenna selection can take advantage of large array.http://link.springer.com/article/10.1186/s13638-017-0868-5Millimeter waveBeamformingAntenna selectionLarge array |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Woochang Lim Girim Kwon Hyuncheol Park |
spellingShingle |
Woochang Lim Girim Kwon Hyuncheol Park Interference mitigation using random antenna selection in millimeter wave beamforming system EURASIP Journal on Wireless Communications and Networking Millimeter wave Beamforming Antenna selection Large array |
author_facet |
Woochang Lim Girim Kwon Hyuncheol Park |
author_sort |
Woochang Lim |
title |
Interference mitigation using random antenna selection in millimeter wave beamforming system |
title_short |
Interference mitigation using random antenna selection in millimeter wave beamforming system |
title_full |
Interference mitigation using random antenna selection in millimeter wave beamforming system |
title_fullStr |
Interference mitigation using random antenna selection in millimeter wave beamforming system |
title_full_unstemmed |
Interference mitigation using random antenna selection in millimeter wave beamforming system |
title_sort |
interference mitigation using random antenna selection in millimeter wave beamforming system |
publisher |
SpringerOpen |
series |
EURASIP Journal on Wireless Communications and Networking |
issn |
1687-1499 |
publishDate |
2017-05-01 |
description |
Abstract In multi-user beamforming systems, the inter-user interference are controlled by spatial filtering. Since the implementation of digital beamforming is difficult due to high hardware cost of large array system, the analog beamforming system with one phase shifter at each antenna element is considered with antenna selection scheme. However, the beamwidth is not sufficiently narrow to perfectly remove the interference due to limited size of antenna arrays. To mitigate the interference, we propose the random antenna selection system in millimeter wave channel. The random antenna selection expands the effective array size so that the beamwidth becomes narrow. We compare the beamwidth of conventional fixed antenna selection with random antenna selection and analyze the amount of interference for each selection scheme. Theoretical analysis and bit error rate simulation results indicate that the beamforming with random antenna selection can take advantage of large array. |
topic |
Millimeter wave Beamforming Antenna selection Large array |
url |
http://link.springer.com/article/10.1186/s13638-017-0868-5 |
work_keys_str_mv |
AT woochanglim interferencemitigationusingrandomantennaselectioninmillimeterwavebeamformingsystem AT girimkwon interferencemitigationusingrandomantennaselectioninmillimeterwavebeamformingsystem AT hyuncheolpark interferencemitigationusingrandomantennaselectioninmillimeterwavebeamformingsystem |
_version_ |
1724988653128646656 |