Low-Resolution Massive MIMO Under Hardware Power Consumption Constraints
Paper in proceeding, 2021

We consider a fully digital massive multipleinput multiple-output architecture with low-resolution analogto-digital/digital-to-analog converters (ADCs/DACs) at the base station (BS) and analyze the performance trade-off between the number of BS antennas, the resolution of the ADCs/DACs, and the bandwidth. Assuming a hardware power consumption constraint, we determine the relationship between these design parameters by using a realistic model for the power consumption of the ADCs/DACs and the radio frequency chains. Considering uplink pilot-aided channel estimation, we build on the Bussgang decomposition to derive tractable expressions for uplink and downlink ergodic achievable sum rates. Numerical results show that the ergodic performance is boosted when many BS antennas with very low resolution (i.e., 2 to 3 bits) are adopted in both the uplink and the downlink.


Italo Atzeni

University of Oulu

Antti Tölli

University of Oulu

Giuseppe Durisi

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Asilomar Conference on Signals, Systems, and Computers 2021

9781665458283 (ISBN)

Asilomar Conference on Signals, Systems, and Computers 2021
Virtual, ,

Areas of Advance

Information and Communication Technology

Subject Categories


Communication Systems

Signal Processing





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4/8/2022 7