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- W4205236502 abstract "Considering the problem of limited backhaul capacity in the uplink phase of the cell-free massive multiple-input multiple-output (MIMO) system. The low-resolution analog-to-digital converter (ADC) is used to quantize the received signal at access point (AP). This paper focuses on the performance of two quantization schemes, namely quantization estimation (QE) and estimation quantization (EQ), to transmit channel state information (CSI) to the central processing unit (CPU) under the zero-forcing (ZF) detection method of joint global CSI. And the additive quantized noise model (AQNM) is uesd to derive the approximate expression of the user's received signal-to-interference-noise ratio(SINR) at CPU. The simulation shows that the performance similar to perfect backhaul can be achieved when quantization bit is greater than 6. And EQ scheme is better than QE under the same quantization bit." @default.
- W4205236502 created "2022-01-25" @default.
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- W4205236502 date "2021-10-13" @default.
- W4205236502 modified "2023-09-26" @default.
- W4205236502 title "Quantization Analysis of Cell-Free Massive MIMO Uplink Backhaul Based on Zero-Forcing" @default.
- W4205236502 doi "https://doi.org/10.1109/icct52962.2021.9658000" @default.
- W4205236502 hasPublicationYear "2021" @default.
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