# Realizability and Internal Model Control on Networks

## TL;DR

This paper demonstrates that network realizability of controllers can be achieved without conservatism through convex constraints, and introduces a network-structured Internal Model Control for implementation.

## Contribution

It provides a method to enforce network realizability without conservatism and develops a network-structured Internal Model Control for practical implementation.

## Key findings

- Network realizability can be enforced via convex constraints.
- A network-structured Internal Model Control is proposed.
- The approach eliminates conservatism in controller design.

## Abstract

It is proved that network realizability of controllers can be enforced without conservatism using convex constraints on the closed loop transfer function. Once a network realizable closed loop transfer matrix has been found, a corresponding controller can be implemented using a network structured version of Internal Model Control.