Achievable Rates for Full-Duplex Massive MIMO Systems With Low-Resolution ADCs/DACs

This paper investigates the uplink and downlink achievable rates of full-duplex (FD) massive multi-input-multi-output (MIMO) systems in which low-resolution analog-to-digital converters/digital-to-analog converters (ADCs/DACs) are employed and maximum ratio combining/maximum ratio transmission proce...

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Bibliographic Details
Published in:IEEE access 2019, Vol.7, p.24343-24353
Main Authors: Dai, Jianxin, Liu, Juan, Wang, Jiangzhou, Zhao, Junxi, Cheng, Chonghu, Wang, Jin-Yuan
Format: Article
Language:English
Subjects:
achievable rate
additive quantization noise model
Analog to digital conversion
Analog to digital converters
Antennas
Digital to analog conversion
Digital to analog converters
Downlink
Downlinking
Full-duplex
Interference
low-resolution ADCs/DACs
Measurement
MIMO (control systems)
MIMO communication
Power consumption
Quantization (signal)
quantization error
Receiving antennas
Scaling laws
Transmitting antennas
Uplink
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Summary:This paper investigates the uplink and downlink achievable rates of full-duplex (FD) massive multi-input-multi-output (MIMO) systems in which low-resolution analog-to-digital converters/digital-to-analog converters (ADCs/DACs) are employed and maximum ratio combining/maximum ratio transmission processing are adopted. Then, employing an additive quantization noise model, we derive approximate expressions of the uplink and downlink achievable rates, in which the effect of the quantization error, the loop interference, and the inter-user interference is considered. The theoretical results show that using proper power scaling law and more antennas can eliminate the interference and the noise. Furthermore, under the fixed number of antennas, the uplink and downlink approximate achievable rates will become a constant, as the number of quantization bits tends to infinity. Increasing the resolution of ADCs/DACs will limitedly improve the system performance but cause excessive overhead and power consumption, so adopting low-resolution ADCs/DACs in FD massive MIMO systems is sensible.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2900273