Antenna Selection for MIMO Systems with Closely Spaced Antennas
Physical size limitations in user equipment may force multiple antennas to be spaced closely, and this generates a considerable amount of mutual coupling between antenna elements whose effect cannot be neglected. Thus, the design and deployment of antenna selection schemes appropriate for next gener...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Online Access: | http://dx.doi.org/10.1155/2009/739828 |
| _version_ | 1818444006307135488 |
|---|---|
| author | Yang Yang Rick S. Blum Sana Sfar |
| author_facet | Yang Yang Rick S. Blum Sana Sfar |
| author_sort | Yang Yang |
| collection | DOAJ |
| description | Physical size limitations in user equipment may force multiple antennas to be spaced closely, and this generates a considerable amount of mutual coupling between antenna elements whose effect cannot be neglected. Thus, the design and deployment of antenna selection schemes appropriate for next generation wireless standards such as 3GPP long term evolution (LTE) and LTE advanced needs to take these practical implementation issues into account. In this paper, we consider multiple-input multipleoutput (MIMO) systems where antenna elements are placed side by side in a limited-size linear array, and we examine the performance of some typical antenna selection approaches in such systems and under various scenarios of antenna spacing and mutual coupling. These antenna selection schemes range from the conventional hard selection method where only part of the antennas are active, to some newly proposed methods where all the antennas are used, which are categorized as soft selection. For the cases we consider, our results indicate that, given the presence of mutual coupling, soft selection can always achieve superior performance as compared to hard selection, and the interelement spacing is closely related to the effectiveness of antenna selection. Our work further reveals that, when the effect of mutual coupling is concerned, it is still possible to achieve better spectral efficiency by placing a few more than necessary antenna elements in user equipment and applying an appropriate antenna selection approach than plainly implementing the conventional MIMO system without antenna selection. |
| first_indexed | 2024-12-14T19:09:04Z |
| format | Article |
| id | doaj.art-6bc820d777fe4f058e1fe8bee53d489a |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-12-14T19:09:04Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-6bc820d777fe4f058e1fe8bee53d489a2022-12-21T22:50:46ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992009-01-01200910.1155/2009/739828Antenna Selection for MIMO Systems with Closely Spaced AntennasYang YangRick S. BlumSana SfarPhysical size limitations in user equipment may force multiple antennas to be spaced closely, and this generates a considerable amount of mutual coupling between antenna elements whose effect cannot be neglected. Thus, the design and deployment of antenna selection schemes appropriate for next generation wireless standards such as 3GPP long term evolution (LTE) and LTE advanced needs to take these practical implementation issues into account. In this paper, we consider multiple-input multipleoutput (MIMO) systems where antenna elements are placed side by side in a limited-size linear array, and we examine the performance of some typical antenna selection approaches in such systems and under various scenarios of antenna spacing and mutual coupling. These antenna selection schemes range from the conventional hard selection method where only part of the antennas are active, to some newly proposed methods where all the antennas are used, which are categorized as soft selection. For the cases we consider, our results indicate that, given the presence of mutual coupling, soft selection can always achieve superior performance as compared to hard selection, and the interelement spacing is closely related to the effectiveness of antenna selection. Our work further reveals that, when the effect of mutual coupling is concerned, it is still possible to achieve better spectral efficiency by placing a few more than necessary antenna elements in user equipment and applying an appropriate antenna selection approach than plainly implementing the conventional MIMO system without antenna selection.http://dx.doi.org/10.1155/2009/739828 |
| spellingShingle | Yang Yang Rick S. Blum Sana Sfar Antenna Selection for MIMO Systems with Closely Spaced Antennas EURASIP Journal on Wireless Communications and Networking |
| title | Antenna Selection for MIMO Systems with Closely Spaced Antennas |
| title_full | Antenna Selection for MIMO Systems with Closely Spaced Antennas |
| title_fullStr | Antenna Selection for MIMO Systems with Closely Spaced Antennas |
| title_full_unstemmed | Antenna Selection for MIMO Systems with Closely Spaced Antennas |
| title_short | Antenna Selection for MIMO Systems with Closely Spaced Antennas |
| title_sort | antenna selection for mimo systems with closely spaced antennas |
| url | http://dx.doi.org/10.1155/2009/739828 |
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