Performance Analysis on Cell-Free Massive MIMO With Capacity-Constrained Fronthauls and Variable-Resolution ADCs

In the recently proposed cell-free massive multiple-input and multiple-output (MIMO) networks, the capacity of fronthaul links connecting all access points (APs) and a central processing unit (CPU) is limited. In this context, taking into consideration the spatial channel correlation at the APs, thi...

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Veröffentlicht in:	IEEE systems journal 2022-06, Vol.16 (2), p.1-12
Hauptverfasser:	Xiong, Youzhi, Sun, Sanshan, Qin, Lang, Wei, Ning, Liu, Li, Zhang, Zhongpei
Format:	Artikel
Sprache:	eng
Schlagworte:	Analog to digital converters Cell-free massive multiple-input and multiple-output (MIMO) Central processing units channel correlation Constraints Correlation CPUs Downlink Fading Fading channels limited-capacity fronthaul linear minimum mean-square (LMMSE) Massive MIMO Measurement MIMO communication Quantization (signal) Training Uplink variable-resolution quantization
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