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- W3166430420 abstract "Quantization is the characterization of analogue-to-digital converters (ADC) in massive MIMO systems. The design of quantization function or quantization thresholds is found to relate to quantization step, which is the factor that adapts with the changing of transmit power and noise variance. With the objective of utilizing low-resolution ADC is reducing the cost of massive MIMO, we propose an idea as if it is necessary to have adaptive-threshold quantization function. It is found that when maximum-likelihood (ML) is employed as the detection method, having quantization thresholds fixed for low-resolution ADCs will not cause significant performance loss. Moreover, such fixed-threshold quantization function does not require any information of signal power which can reduce the hardware cost of ADCs. Simulations have been carried out in this paper to make comparisons between fixed-threshold and adaptive-threshold quantization regarding various factors." @default.
- W3166430420 created "2021-06-22" @default.
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- W3166430420 date "2021-04-01" @default.
- W3166430420 modified "2023-09-27" @default.
- W3166430420 title "On the Design of Quantization Functions for Uplink Massive MIMO with Low-Resolution ADCs" @default.
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- W3166430420 doi "https://doi.org/10.1109/vtc2021-spring51267.2021.9448919" @default.
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