Reliable Transmission of Short Packets Through Queues and Noisy Channels Under Latency and Peak-Age Violation Guarantees
Journal article, 2019

This paper investigates the probability that the delay and the peak-age of information exceed a desired threshold in a point-to-point communication system with short information packets. The packets are generated according to a stationary memoryless Bernoulli process, placed in a single-server queue and then transmitted over a wireless channel. A variable-length stop-feedback coding scheme - a general strategy that encompasses simple automatic repetition request (ARQ) and more sophisticated hybrid ARQ techniques as special cases - is used by the transmitter to convey the information packets to the receiver. By leveraging finite-blocklength results, the delay violation and the peak-age violation probabilities are characterized without resorting to approximations based on larg-deviation theory as in previous literature. Numerical results illuminate the dependence of delay and peak-age violation probability on system parameters such as the frame size and the undetected error probability, and on the chosen packet-management policy. The guidelines provided by our analysis are particularly useful for the design of low-latency ultra-reliable communication systems.

peak-age violation probability

Ultra-reliable low-latency communications

HARQ

delay violation probability

ARQ

Author

Rahul Devassy

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

Giuseppe Durisi

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

Guido Carlo Ferrante

Chalmers University of Technology

Osvaldo Simeone

King's College London

Elif Uysal

Middle East Technical University (METU)

IEEE Journal on Selected Areas in Communications

0733-8716 (ISSN)

Vol. 37 4 721-734 8640078

Subject Categories

Telecommunications

Communication Systems

Information Systemes, Social aspects

DOI

10.1109/JSAC.2019.2898760

More information

Latest update

7/16/2019