| Title | Mitigating TCP Congestion: A Coordinated Cyber and Physical Approach |
| Publication Type | Conference Paper |
| Year of Publication | 2021 |
| Authors | Mao, Zeyu, Sahu, Abhijeet, Wlazlo, Patrick, Liu, Yijing, Goulart, Ana, Davis, Katherine, Overbye, Thomas J. |
| Conference Name | 2021 North American Power Symposium (NAPS) |
| Keywords | Aerospace electronics, coupled congestion control, cyber-physical system (CPS), DNP3, industrial control system, integrated circuits, process control, Protocols, pubcrawl, Real-time Systems, reinforcement learning, Resiliency, Scalability, System Dynamics, TCP Congestion, Uncertainty |
| Abstract | The operation of the modern power grid is becoming increasingly reliant on its underlying communication network, especially within the context of the rapidly growing integration of Distributed Energy Resources (DERs). This tight cyber-physical coupling brings uncertainties and challenges for the power grid operation and control. To help operators manage the complex cyber-physical environment, ensure the integrity, and continuity of reliable grid operation, a two-stage approach is proposed that is compatible with current ICS protocols to improve the deliverability of time critical operations. With the proposed framework, the impact Denial of Service (DoS) attack can have on a Transmission Control Protocol (TCP) session could be effectively prevented and mitigated. This coordinated approach combines the efficiency of congestion window reconfiguration and the applicability of physical-only mitigation approaches. By expanding the state and action space to encompass both the cyber and physical domains. This approach has been proven to outperform the traditional, physical-only method, in multiple network congested scenarios that were emulated in a real-time cyber-physical testbed. |
| DOI | 10.1109/NAPS52732.2021.9654541 |
| Citation Key | mao_mitigating_2021 |
Mitigating TCP Congestion: A Coordinated Cyber and Physical Approach