Short-packet Transmission via Variable-Length Codes in the Presence of Noisy Stop Feedback
Artikel i vetenskaplig tidskrift, 2021

We present an upper bound on the error probability achievable using variable-length stop feedback (VLSF) codes, for a fixed size of the information payload and a given constraint on the maximum latency and the average service time. Differently from the bound proposed in Polyanskiy et al. (2011), which pertains to the scenario in which the stop signal is sent over a noiseless feedback channel, our bound applies to the practically relevant setup in which the feedback link is noisy. Numerical evaluation of our bound suggests that, for fixed latency and reliability constraints, noise in the feedback link may increase the minimum average service time for the VLSF scheme considered in this paper, to the extent that fixed-length codes without feedback may be preferable in some scenarios.

ultra-reliable low-latency communications (urllc)

hybrid automatic repeat request (harq)

noisy feedback

Författare

Johan Östman

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Rahul Devassy

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Giuseppe Durisi

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Erik Ström

Chalmers, Elektroteknik, Kommunikations- och antennsystem

IEEE Transactions on Wireless Communications

1536-1276 (ISSN)

Vol. 20 1 214-227 9204378

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

Vetenskapsrådet (VR), 2015-01-01 -- 2018-12-31.

SWIFT : short-packet wireless information theory

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

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/TWC.2020.3024152

Mer information

Senast uppdaterat

2021-02-15