An Online Cross-layered Defense Strategy with Bandwidth Allocation for Multi-channel Systems under DoS Attacks
Abstract
This paper proposes an online cross-layered defense strategy for multi-channel systems with switched dynamics under DoS attacks. The enabling condition of a channel under attacks is formulated with respect to attack flow and channel bandwidth, then a new networked control system model bridging the gap between system dynamics and network deployment is built. Based on this, the cross-layered defense strategy is proposed. It jointly optimizes the controller gain and bandwidth allocation of channels according to the real-time attack flow and system dynamics, by solving a mixed-integer semidefinite programming online. A smart enumeration algorithm for non-convex bi-level optimization is proposed to analyze the stability under the strategy. Numerical examples are given to illustrate the high resilience from the cross-layered feature.
Keywords
Cite
@article{arxiv.2504.20762,
title = {An Online Cross-layered Defense Strategy with Bandwidth Allocation for Multi-channel Systems under DoS Attacks},
author = {Liheng Wan and Panshuo Li and James Lam},
journal= {arXiv preprint arXiv:2504.20762},
year = {2025}
}