Achieving Beamfocusing via Two Separated Uniform Linear Arrays
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866929615214215168 |
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| author | Kosasih, Alva Demir, Özlem Tugfe Björnson, Emil |
| author_facet | Kosasih, Alva Demir, Özlem Tugfe Björnson, Emil |
| contents | This paper investigates coordinated beamforming using a modular linear array (MLA), composed of a pair of physically separated uniform linear arrays (ULAs), treated as sub-arrays. We focus on how such setups can give rise to near-field effects in 6G networks without requiring many antennas. Unlike conventional far-field beamforming, near-field beamforming enables simultaneous data service to multiple users at different distances in the same angular direction, offering significant multiplexing gains. We present a detailed analysis, including analytical expressions of the beamwidth and beamdepth for the MLA. Our findings reveal that using the MLA approach, we can remove approximately 36% of the antennas in the ULA while achieving the same level of beamfocusing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_03232 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Achieving Beamfocusing via Two Separated Uniform Linear Arrays Kosasih, Alva Demir, Özlem Tugfe Björnson, Emil Signal Processing This paper investigates coordinated beamforming using a modular linear array (MLA), composed of a pair of physically separated uniform linear arrays (ULAs), treated as sub-arrays. We focus on how such setups can give rise to near-field effects in 6G networks without requiring many antennas. Unlike conventional far-field beamforming, near-field beamforming enables simultaneous data service to multiple users at different distances in the same angular direction, offering significant multiplexing gains. We present a detailed analysis, including analytical expressions of the beamwidth and beamdepth for the MLA. Our findings reveal that using the MLA approach, we can remove approximately 36% of the antennas in the ULA while achieving the same level of beamfocusing. |
| title | Achieving Beamfocusing via Two Separated Uniform Linear Arrays |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2412.03232 |