One-bit ADCs in wideband massive MIMO systems with OFDM transmission

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We investigate the performance of wideband massive MIMO base stations that use one-bit ADCs for quantizing the uplink signal. Our main result is to show that the many taps of the frequency-selective channel make linear combiners asymptotically consistent and the quantization noise additive and Gaussian, which simplifies signal processing and enables the straightforward use of OFDM. We also find that single-carrier systems and OFDM systems are affected in the same way by one-bit quantizers in wideband systems because the distribution of the quantization noise becomes the same in both systems as the number of channel taps grows.
Publisher
IEEE Signal Processing Society
Issue Date
2016-03
Language
English
Citation

41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016, pp.3386 - 3390

DOI
10.1109/ICASSP.2016.7472305
URI
http://hdl.handle.net/10203/267613
Appears in Collection
RIMS Conference Papers
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