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- W4376457027 abstract "This article studies the downlink performance of a cell-free massive multiple-input–multiple-output (MIMO) system with imperfect channel estimation and reciprocity calibration. We present the statistical characteristics of the calibration error with the Argos algorithm and a relay-based calibration algorithm to obtain the calibration parameters of the whole network. Then, we derive approximate expressions of the downlink spectral efficiency for a cell-free massive MIMO system with imperfect channel state information and calibration error. The numerical results show the advantage of the proposed calibration algorithm and validate the accuracy of the theoretical expressions." @default.
- W4376457027 created "2023-05-14" @default.
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- W4376457027 date "2023-09-01" @default.
- W4376457027 modified "2023-10-16" @default.
- W4376457027 title "Performance of Cell-Free Massive MIMO Under Imperfect Channel State Information and Reciprocity Calibration" @default.
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- W4376457027 doi "https://doi.org/10.1109/jsyst.2023.3269145" @default.
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