On the nonasymptotic performance of variable-length codes with noisy stop feedback
Paper i proceeding, 2019

We present an upper bound on the error probability
achievable using variable-length stop-feedback codes, for a fixed
size of the information payload and a given constraint on both
the average and the maximum latency. 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 scenario in
which the feedback link is noisy. Through numerical results, we
illustrate that, in scenarios in which the desired average latency is
small, noise in the feedback link can deteriorate the performance
of variable-length stop-feedback codes to the extent that it becomes comparable to that of fixed-length codes without feedback.


Johan Östman

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Rahul Devassy

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Erik Ström

Chalmers, Elektroteknik, Kommunikations- och antennsystem

IEEE Information Theory Workshop 2019
Visby, Sweden,

SWIFT : short-packet wireless information theory

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

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.





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