Security Research on Wireless Networked Control Systems Subject to Jamming Attacks

Abstract

In this paper, a countermeasure for wireless networked control systems suffering from jamming attacks is studied by a variable sampling approach. A Stackelberg game framework is utilized to analyze interactions between a smart jammer and a legitimate user. The variable sampling approach is exploited to deal with data packets dropout between a sensor and a controller. Moreover, a resilient variable sampling controller is designed by a delta operator method. Besides, stability conditions are provided for systems with proposed controller. Finally, a numerical simulation is provided to validate the effectiveness of the proposed method.

An Overview on Denial-of-Service Attacks in Control Systems: Attack Models and Security Analyses

“…A game with SINR-based formulation for wireless networked control systems was also considered by Yang et al [ 81 ]. The players in the game are: (1) the user who decides the power of transmissions from the controller to the plant; and (2) the jamming attacker who decides the jamming interference power.…”

“…The players in the game are: (1) the user who decides the power of transmissions from the controller to the plant; and (2) the jamming attacker who decides the jamming interference power. In particular, Yang et al [ 81 ] explored a Stackelberg game , where the user is the leader and acts first; the action of the user is then followed by that of the jamming attacker. In the problem setting in [ 81 ], the utilities of the user and the attacker depend directly on the SINR.…”

“…In particular, Yang et al [ 81 ] explored a Stackelberg game , where the user is the leader and acts first; the action of the user is then followed by that of the jamming attacker. In the problem setting in [ 81 ], the utilities of the user and the attacker depend directly on the SINR. They are expressed as , where L , , and are fixed positive constants representing channel properties, is the background channel noise, and and , respectively, denote the transmission power of the user and interference power of the attacker.…”

“…In this formulation, the optimal strategy of the jamming attacker for a given transmission power P is denoted by and is obtained by finding that maximizes Then, based on the jamming attacker’s optimal strategy, the user’s best strategy is obtained in [ 81 ] through solving the problem…”

Optimal Jamming Attack System Against Remote State Estimation in Wireless Network Control Systems

“…As a result, the security issues of WNCSs have aroused so much interest from researchers [6] [7]. Attackers study how to attack WNCSs, while defenders study how to detect attacks [8] [9]. Generally speaking, there are four types of network attacks [10]: space hiding-time hiding attacks, such as system simulation attacks, Stuxnet-type replay attacks, etc.…”