Low-latency Ultra-Reliable 5G Communications: Finite-blocklength bounds and coding schemes
Paper i proceeding, 2017

Future autonomous systems require wireless connectivity able to support extremely stringent requirements on both latency and reliability. In this paper, we leverage recent developments in the field of finite-blocklength information theory to illustrate how to optimally design wireless systems in the presence of such stringent constraints. Focusing on a multi-antenna Rayleigh block-fading channel, we obtain bounds on the maximum number of bits that can be transmitted within given bandwidth, latency, and reliability constraints, using an orthogonal frequency-division multiplexing system similar to LTE. These bounds unveil the fundamental interplay between latency, bandwidth, rate, and reliability. Furthermore, they suggest how to optimally use the available spatial and frequency diversity. Finally, we use our bounds to benchmark the performance of an actual coding scheme involving the transmission of short packets.

Författare

Johan Östman

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Giuseppe Durisi

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Erik Ström

Chalmers, Signaler och system, Kommunikations- och antennsystem

Jingya Li

Ericsson AB

Henrik Sahlin

Ericsson AB

G. Liva

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

SCC 2017 - 11th International ITG Conference on Systems, Communications and Coding

11th International ITG Conference on Systems, Communications and Coding, SCC 2017
Hamburg, Germany,

Teori och praktik för optimal spektral effektivitet i trådlösa ad-hoc nät med strikta krav på latens och tillförlitlighet

Vetenskapsrådet (VR), 2015-01-01 -- 2019-12-31.

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

Mer information

Senast uppdaterat

2020-03-16