Achievable uplink rates for massive MIMO with coarse quantization

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The high hardware complexity of a massive MIMO base station, which requires hundreds of radio chains, makes it challenging to build commercially. One way to reduce the hardware complexity and power consumption of the receiver is to lower the resolution of the analog-to-digital converters (ADCs). We derive an achievable rate for a massive MIMO system with arbitrary quantization and use this rate to show that ADCs with as low as 3 bits can be used without significant performance loss at spectral efficiencies around 3.5 bpcu per user, also under interference from stronger transmitters and with some imperfections in the automatic gain control.
Publisher
IEEE Signal Processing Society
Issue Date
2017-03
Language
English
Citation

2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017, pp.6488 - 6492

DOI
10.1109/ICASSP.2017.7953406
URI
http://hdl.handle.net/10203/267434
Appears in Collection
RIMS Conference Papers
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