Real-Time Variable-to-Fixed Lossless Source Coding of Randomly Arriving Symbols

Abstract

We address the recently suggested problem of causal lossless coding of a randomly arriving source samples. We construct variable-to-fixed coding schemes and show that they outperform the previously considered fixed-to-variable schemes when traffic is high both in terms of delay and Age of Information by appealing to tools from queueing theory. We supplement our theoretical bounds with numerical simulations.

arXiv comment5 pages, 2 figures, submitted to ITW 2020