Resilience against Misbehaving Nodes in Asynchronous Networks

TL;DR

This paper investigates how to achieve resilient consensus in asynchronous network systems where nodes may behave maliciously or fail, focusing on developing protocols that maintain system functionality under such conditions.

Contribution

It introduces the first steps towards resilient event-triggered and self-triggered coordination protocols for asynchronous networks with misbehaving nodes.

Findings

Proposes a framework for resilient consensus in asynchronous networks.

Develops initial protocols for event-triggered and self-triggered coordination.

Addresses the challenge of nodes operating asynchronously with potential faults or attacks.

Abstract

Network systems are one of the most active research areas in the engineering community as they feature a paradigm shift from centralized to distributed control and computation. When dealing with network systems, a fundamental challenge is to ensure their functioning even when some of the network nodes do not operate as intended due to faults or attacks. The objective of this paper is to address the problem of resilient consensus in a context where the nodes have their own clocks, possibly operating in an asynchronous way, and can make updates at arbitrary time instants. The results represent a first step towards the development of resilient event-triggered and self-triggered coordination protocols.