# Layered black-box, behavioral interconnection perspective and applications to the problem of communication with fidelity criteria, Part I: i.i.d. sources

## TL;DR

This paper introduces a behavioral, interconnection-based approach to communication over unknown channels, deriving reliable rates, proving source-channel separation, and extending results to multi-user scenarios.

## Contribution

It presents a novel behavioral perspective on communication with fidelity criteria, establishing reliable rates and source-channel separation for unknown channels, including multi-user extensions.

## Key findings

- Derived reliable communication rates for unknown channels
- Proved source-channel separation under fidelity criteria
- Extended results to multi-user communication scenarios

## Abstract

In this paper, the problem of communication over an essentially unknown channel, which is known to be able to communicate a source to a destination to within a certain distortion level, is considered from a behavioral, interconnection view-point. Rates of reliable communication are derived and source-channel separation for communication with fidelity criteria is proved. The results are then generalized to the multi-user setting under certain assumptions. Other applications of this problem problem which follow from this perspective are discussed.