Variations on Information Embedding in Multiple Access and Broadcast Channels

TL;DR

This paper explores various methods of information embedding in multiple access and broadcast channels, focusing on reversible and irreversible techniques and their combinations, to understand their performance and potential applications.

Contribution

It introduces combined reversible and irreversible information embedding strategies in MAC and broadcast channels, expanding the understanding of embedding techniques in complex communication scenarios.

Findings

Analyzes the performance of combined IE methods in MAC and BC.

Provides theoretical insights into host and message recovery trade-offs.

Suggests potential for improved embedding schemes in multi-user channels.

Abstract

Information embedding (IE) is the transmission of information within a host signal subject to a distortion constraint. There are two types of embedding methods, namely irreversible IE and reversible IE, depending upon whether or not the host, as well as the message, is recovered at the decoder. In irreversible IE, only the embedded message is recovered at the decoder, and in reversible IE, both the message and the host are recovered at the decoder. This paper considers combinations of irreversible and reversible IE in multiple access channels (MAC) and physically degraded broadcast channels (BC).