User-centric Handover in mmWave Cell-Free Massive MIMO with User Mobility

被引：23
|
作者：
D'Andrea, Carmen [1 ]
Interdonato, Giovanni [1 ]
Buzzi, Stefano [1 ]
机构：
[1] Univ Cassino & Southern Latium, Dipartimento Ingn Elettr & Informaz, Cassino, Italy
来源：
29TH EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO 2021) | 2021年
关键词：
cell-free massive MIMO; millimeter-wave; user mobility; channel aging; handovers;
D O I：
10.23919/EUSIPCO54536.2021.9616361
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The coupling between cell-free massive multiple-input multiple-output (MIMO) systems operating at millimeter-wave (mmWave) carrier frequencies and user mobility is considered in this paper. First of all, a mmWave channel is introduced taking into account the user mobility and the impact of the channel aging. Then, three beamforming techniques are proposed in the considered scenario, along with a dynamic user association technique (handover): starting from a user-centric association between each mobile device and a cluster of access points (APs), a rule for updating the APs cluster is formulated and analyzed. Numerical results reveal that the proposed beamforming and user association techniques are effective in the considered scenario.
引用
收藏
页码：925 / 929
页数：5
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