Dynamic Anti-Jamming Strategy in SIoT: A Stackelberg-Matching Game Approach

The Internet of Things (IoT) is a key factor driving the widespread use of smart consumer electronics, yet remote areas are difficult to access. Satellite Internet of Things (SIoT), as a complement and extension of IoT, has the advantages of being able to achieve global coverage and the deployment of sensors that are virtually unrestricted by space. However, due to its highly exposed star-ground links, SIoT is highly susceptible to jamming attacks. Therefore, this paper investigates the dynamic anti-jamming scheme for SIoT to decrease consumption in the jamming environment. A hierarchical anti-jamming Stackelberg game (HASG) is proposed to characterize the adversarial interactions between the jamming satellites and the ground cells, and it has been demonstrated that a Stackelberg equilibrium exists in the proposed HASG. Subsequently, to avoid the dimensional catastrophe associated with exhaustive enumeration, the leader subgame and follower subgame are described as many-to-one matching and one-to-one matching problems, respectively. A low-complexity matching strategy is proposed, and the existence of stable suboptimal solutions is proved. Simulation results show that the proposed anti-jamming matching strategy can realize efficient communication.