Strong Secrecy for General Multiple-Access Wiretap Channels

TL;DR

This paper establishes a strong secrecy rate region for general multiple access wiretap channels using information-spectrum methods, ensuring reliable communication with minimal information leakage to eavesdroppers.

Contribution

It introduces a novel achievable strong secrecy rate region for multiple access wiretap channels based on resolvability and information-spectrum techniques.

Findings

Achieves reliable communication with strong secrecy guarantees.

Utilizes variational distance to measure information leakage.

Employs information-spectrum methods for general channel analysis.

Abstract

This paper is concerned with the general multiple access wiretap channel and the existence of codes that accomplish reliability and strong secrecy. Information leakage to the eavesdropper is assessed by the variational distance metric, whereas the average error probability is bounded by modifying Feinsteins Lemma. We derive an achievable strong secrecy rate region by utilizing the resolvability theory for the multiple-access channel in terms of information-spectrum methods.