How to apply the rubber method for channels with feedback

TL;DR

This paper reviews the rubber method, a feedback channel coding strategy developed in 2005, highlighting its capacity-achieving potential and various generalizations for specific channel types.

Contribution

It provides an overview of the rubber method's applications, its generalizations, and modifications for channels with feedback, emphasizing its capacity-achieving properties.

Findings

The rubber method can sometimes reach channel capacity.

Generalizations extend its applicability to special channels.

Modifications improve the method's performance for feedback channels.

Abstract

We give an overview of applications of the rubber method. The rubber method is a coding algorithm that was developed in 2005 by Ahlswede, Deppe and Lebedev for channels with feedback. It was a big surprise that an encoding strategy that reserves one symbol exclusively as a rubber can sometimes reach the capacity of a channel. Since then, generalizations of the algorithm have been developed. These generalizations can be used for special channels. There are also other ideas for modifying the rubber method.