One-Bit ADCs in Wideband Massive MIMO Systems with OFDM Transmission
2016 (English)Conference paper (Refereed)
We investigate the performance of wideband massive MIMO base stations that use one-bit ADCs for quantizing the uplink signal. Ourmain 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.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:liu:diva-124241OAI: oai:DiVA.org:liu-124241DiVA: diva2:897045
ICASSP 2016, The 41st IEEE International Conference on Acoustics, Speech, and Signal Processing, 20-25 March, Shanghai, China