On the nonasymptotic performance of variable-length codes with noisy stop feedback
Paper in proceedings, 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.

Author

Johan Östman

Chalmers, Electrical Engineering, Communication and Antenna Systems, Communication Systems

Rahul Devassy

Chalmers, Electrical Engineering, Communication and Antenna Systems, Communication Systems

Erik Ström

Chalmers, Electrical Engineering, Communication and Antenna Systems

IEEE Information Theory Workshop 2019
Visby, Sweden,

SWIFT : short-packet wireless information theory

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

Theory and practice for optimum spectral efficiency for ad-hoc wireless networks with strict requirements on latency and reliability

Swedish Research Council (VR), 2015-01-01 -- 2018-12-31.

Subject Categories

Telecommunications

Control Engineering

Signal Processing

More information

Created

8/29/2019