A cross‐layer anti‐jamming method in satellite Internet

In view of the diverse jamming environment, the single-level anti-jamming method faces some challenges such as poor timeliness, high cost and poor effect. In this paper, routing delay, cost overhead and diversified jamming threats are comprehensively considered. In addition, a cross-layer anti-jamming method is proposed in the scenario of busy satellite Internet communication. The proposed cross-layer anti-jamming method involves two levels: link-layer anti-jamming based on path repair and network-layer anti-jamming based on path reconstruction. On the one hand, the channel is selected based on the improved Q-learning anti-jamming algorithm to confront common jamming. On the other hand, the route from the source to the destination node is selected based on the cross-layer anti-jamming algorithm to confront high-intensity jamming. Finally, the simulation results show that, compared with other anti-jamming algorithms, the proposed algorithm can achieve higher efficiency, lower cost, and more robust anti-jamming routing.