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Paper detail

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

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.

preprint2021arXivOpen access
Carmen D'AndreaGiovanni InterdonatoStefano Buzzi
math.ITInformation Theoryeess.SP
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Carmen D'AndreaGiovanni InterdonatoStefano Buzzi

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