Cell-free Massive MIMO with Short Packets
Paper i proceeding, 2021

In this paper, we adapt to cell-free Massive MIMO (multiple-input multiple-output) the finite-blocklength framework introduced by Ostman et al. (2020) for the charac- ¨ terization of the packet error probability achievable with Massive MIMO, in the ultra-reliable low-latency communications (URLLC) regime. The framework considered in this paper encompasses a cell-free architecture with imperfect channelstate information, and arbitrary linear signal processing performed at a central-processing unit connected to the access points via fronthaul links. By means of numerical simulations, we show that, to achieve the high reliability requirements in URLLC, MMSE signal processing must be used. Comparisons are also made with both small-cell and Massive MIMO cellular networks. Both require a much larger number of antennas to achieve comparable performance to cell-free Massive MIMO.

ultra-reliable low-latency communications

saddlepoint approximation

Cell-free Massive MIMO

finite-blocklength regime

centralized operation

Författare

Alejandro Lancho Serrano

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk, Kommunikationssystem

Giuseppe Durisi

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk, Kommunikationssystem

Luca Sanguinetti

Universita di Pisa

IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

416-420
978-1-6654-2851-4 (ISBN)

2021 IEEE 22nd International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Lucca, Italy,

SWIFT : short-packet wireless information theory

Vetenskapsrådet (VR) (2016-03293), 2017-01-01 -- 2020-12-31.

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/SPAWC51858.2021.9593103

Mer information

Senast uppdaterat

2022-01-31