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MIMO Evolution Toward 6G: End-User-Centric Collaborative MIMO
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DOI：10.1109/MCOM.022.2300282.png)
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In 6G, the trend of transitioning from massive antenna elements to even more massive ones continues. However, installing additional antennas in the limited space of user equipment (UE) is challenging, resulting in limited capacity scaling gain for end users, despite network side support for increasing numbers of antennas. To address this issue, we propose an end-user-centric collaborative MIMO (UE-CoMIMO) framework that groups several fixed or portable devices to provide a virtual abundance of antennas. This article outlines how advanced L1 relays and conventional relays enable device collaboration to offer diversity, rank, and localization enhancements. We demonstrate through system-level simulations how the UE-CoMIMO approaches lead to significant performance gains. Lastly, we discuss necessary research efforts to make UE-CoMIMO available for 6G and future research directions.
Keyword:
Antennas
Collaboration
Relays
MIMO communication
Repeaters
Performance evaluation
6G mobile communication
期刊
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8.2
论文数:
6.9K
被引数:
2.2W
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