Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks
MIMO system with large number of antennas, referred to as large MIMO or massive MIMO, has drawn increased attention as they enable significant throughput and coverage improvement in LTE-Advanced networks. However, deploying huge number of antennas in both transmitters and receivers was a great chall...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/764507 |
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| _version_ | 1832547512558288896 |
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| author | Yan Li Xiaodong Ji Dong Liang Yuan Li |
| author_facet | Yan Li Xiaodong Ji Dong Liang Yuan Li |
| author_sort | Yan Li |
| collection | DOAJ |
| description | MIMO system with large number of antennas, referred to as large MIMO or massive MIMO, has drawn increased attention as they enable significant throughput and coverage improvement in LTE-Advanced networks. However, deploying huge number of antennas in both transmitters and receivers was a great challenge in the past few years. Three-dimensional MIMO (3D MIMO) is introduced as a promising technique in massive MIMO networks to enhance the cellular performance by deploying antenna elements in both horizontal and vertical dimensions. Radio propagation of user equipments (UE) is considered only in horizontal domain by applying 2D beamforming. In this paper, a dynamic beamforming algorithm is proposed where vertical domain of antenna is fully considered and beamforming vector can be obtained according to UEs’ horizontal and vertical directions. Compared with the conventional 2D beamforming algorithm, throughput of cell edge UEs and cell center UEs can be improved by the proposed algorithm. System level simulation is performed to evaluate the proposed algorithm. In addition, the impacts of downtilt and intersite distance (ISD) on spectral efficiency and cell coverage are explored. |
| format | Article |
| id | doaj-art-6faa4c610efe47a9b766c70e4e949c09 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-6faa4c610efe47a9b766c70e4e949c092025-02-03T06:44:26ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/764507764507Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced NetworksYan Li0Xiaodong Ji1Dong Liang2Yuan Li3Wireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communications (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 100876, ChinaWireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communications (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 100876, ChinaWireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communications (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 100876, ChinaWireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communications (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 100876, ChinaMIMO system with large number of antennas, referred to as large MIMO or massive MIMO, has drawn increased attention as they enable significant throughput and coverage improvement in LTE-Advanced networks. However, deploying huge number of antennas in both transmitters and receivers was a great challenge in the past few years. Three-dimensional MIMO (3D MIMO) is introduced as a promising technique in massive MIMO networks to enhance the cellular performance by deploying antenna elements in both horizontal and vertical dimensions. Radio propagation of user equipments (UE) is considered only in horizontal domain by applying 2D beamforming. In this paper, a dynamic beamforming algorithm is proposed where vertical domain of antenna is fully considered and beamforming vector can be obtained according to UEs’ horizontal and vertical directions. Compared with the conventional 2D beamforming algorithm, throughput of cell edge UEs and cell center UEs can be improved by the proposed algorithm. System level simulation is performed to evaluate the proposed algorithm. In addition, the impacts of downtilt and intersite distance (ISD) on spectral efficiency and cell coverage are explored.http://dx.doi.org/10.1155/2013/764507 |
| spellingShingle | Yan Li Xiaodong Ji Dong Liang Yuan Li Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks International Journal of Antennas and Propagation |
| title | Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks |
| title_full | Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks |
| title_fullStr | Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks |
| title_full_unstemmed | Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks |
| title_short | Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks |
| title_sort | dynamic beamforming for three dimensional mimo technique in lte advanced networks |
| url | http://dx.doi.org/10.1155/2013/764507 |
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