A Finite-Blocklength Analysis for URLLC with Massive MIMO
Paper in proceeding, 2021

This paper presents a rigorous finite-blocklength framework for the characterization and the numerical evaluation of the packet error probability achievable in the uplink and downlink of Massive MIMO for ultra-reliable low-latency communications (URLLC). The framework encompasses imperfect channel-state information, pilot contamination, spatially correlated channels, and arbitrary linear signal processing. For a practical URLLC network setup involving base stations with M = 100 antennas, we show by means of numerical results that a target error probability of 10-5 can be achieved with MMSE channel estimation and multicell MMSE signal processing, uniformly over each cell, only if orthogonal pilot sequences are assigned to all the users in the network. For the same setting, an alternative solution with lower computational complexity, based on least-squares channel estimation and regularized zero-forcing signal processing, does not suffice unless M is increased significantly.

Author

Alejandro Lancho Serrano

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks, Communication Systems

Johan Östman

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks, Communication Systems

Giuseppe Durisi

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks, Communication Systems

Luca Sanguinetti

University of Pisa

IEEE International Conference on Communications

15503607 (ISSN)

Vol. June 2021
9781728171227 (ISBN)

2021 IEEE International Conference on Communications, ICC 2021
Virtual, Online, Canada,

SWIFT : short-packet wireless information theory

Swedish Research Council (VR) (2016-03293), 2017-01-01 -- 2020-12-31.

Subject Categories

Telecommunications

Communication Systems

Signal Processing

DOI

10.1109/ICC42927.2021.9500881

More information

Latest update

12/28/2021