Theoretical Performance Bound of Uplink Channel Estimation Accuracy in Massive MIMO

Alexander Osinsky; Andrey Ivanov; Dmitry Yarotsky

doi:10.1109/ICASSP40776.2020.9053085

Theoretical Performance Bound of Uplink Channel Estimation Accuracy in Massive MIMO

Signal Processing 2020-09-29 v1

Authors: Alexander Osinsky , Andrey Ivanov , Dmitry Yarotsky

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Abstract

In this paper, we present a new performance bound for uplink channel estimation (CE) accuracy in the Massive Multiple Input Multiple Output (MIMO) system. The proposed approach is based on noise power prediction after the CE unit. Our method outperforms the accuracy of a well-known Cramer-Rao lower bound (CRLB) due to considering more statistics since performance strongly depends on a number of channel taps and power ratio between them. Simulation results are presented for the non-line of sight (NLOS) 3D-UMa model of 5G QuaDRiGa 2.0 channel and compared with CRLB and state-of-the-art CE algorithms.

Keywords

massive mimo channel estimation cell-free massive mimo

Cite

@article{arxiv.2002.10932,
  title  = {Theoretical Performance Bound of Uplink Channel Estimation Accuracy in Massive MIMO},
  author = {Alexander Osinsky and Andrey Ivanov and Dmitry Yarotsky},
  journal= {arXiv preprint arXiv:2002.10932},
  year   = {2020}
}

Comments

accepted for presentation in a poster session at the ICASSP 2020 conference

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