TY - GEN
T1 - Effect of quantization range limit for low-resolution analog-to-digital converters in full-digital massive MIMO system
AU - Gao, Peng
AU - Sanada, Yukitoshi
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Low-resolution analog-to-digital converters (ADCs) may need to be implemented in a full-digital massive multi-user MIMO system for low-power consumption. In this paper, the performance with a proposed ADC design for low-resolution ADCs to suppress the amount of degradation due to the quantization process in the full-digital massive multi-user MIMO system is evaluated. In the proposed ADC design, quantization range limit is specified based on the mean amplitude of a received signal and the input amplitude is bounded to eliminate thermal noise. Numerical results show that, through clipping the thermal noise by setting the appropriate quantization range limit, the full-digital massive MIMO with low-resolution ADCs (even 1-bit ADCs) realizes better system throughput than that with infinite-resolution ADCs. It is also shown that the throughput with low-resolution ADCs is equivalent to that with infinite-resolution ADCs when the number of users is less than three (the number of streams is less than six).
AB - Low-resolution analog-to-digital converters (ADCs) may need to be implemented in a full-digital massive multi-user MIMO system for low-power consumption. In this paper, the performance with a proposed ADC design for low-resolution ADCs to suppress the amount of degradation due to the quantization process in the full-digital massive multi-user MIMO system is evaluated. In the proposed ADC design, quantization range limit is specified based on the mean amplitude of a received signal and the input amplitude is bounded to eliminate thermal noise. Numerical results show that, through clipping the thermal noise by setting the appropriate quantization range limit, the full-digital massive MIMO with low-resolution ADCs (even 1-bit ADCs) realizes better system throughput than that with infinite-resolution ADCs. It is also shown that the throughput with low-resolution ADCs is equivalent to that with infinite-resolution ADCs when the number of users is less than three (the number of streams is less than six).
KW - Low-resolution ADCs
KW - Massive MIMO
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U2 - 10.1109/VTS-APWCS.2019.8851655
DO - 10.1109/VTS-APWCS.2019.8851655
M3 - Conference contribution
AN - SCOPUS:85073529513
T3 - Proceedings - 2019 IEEE VTS Asia Pacific Wireless Communications Symposium, APWCS 2019
BT - Proceedings - 2019 IEEE VTS Asia Pacific Wireless Communications Symposium, APWCS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE VTS Asia Pacific Wireless Communications Symposium, APWCS 2019
Y2 - 28 August 2019 through 30 August 2019
ER -