Application of LEO satellite communication in electric power emergency scenarios

Abstract

Traditional power communication networks mainly rely on terrestrial transmission methods. In natural disaster emergency scenarios, they are highly vulnerable to line damage, coverage interruption, and fragile communication links, making it difficult to ensure communication continuity and reliability. As a result, they struggle to meet the requirements of newtype power systems for emergency communication and real-time monitoring. Low Earth Orbit (LEO) satellite communication, with its advantages of low altitude, low latency, and wide coverage, can establish a highly resilient communication network, significantly improving communication reliability and robustness. Therefore, it shows great potential for application in power emergency communication scenarios. To address communication support challenges in emergency power service scenarios, this paper constructs a three-layer collaborative communication architecture consisting of on-site terminals, unmanned aerial vehicles (UAVs), LEO satellites, and a ground emergency command center. Considering that different services have diverse communication requirements, a priority-aware bandwidth allocation strategy is introduced. On this basis, a priority-based Lagrangian bandwidth allocation method is proposed. Experimental results demonstrate that the proposed algorithm not only satisfies service priority requirements but also further reduces the transmission delay of different services.