Binary Tree-Based Key Management Scheme for a Ground Station Managing IoT Devices in a Satellite Multicast Communication

Satellite-terrestrial networks are crucial in supporting global applications like environmental monitoring, disaster response, and military communication. These networks are essential for global communication as well as connecting underserved and isolated locations where traditional terrestrial infrastructure is too costly, difficult to establish, or prone to collapse in an emergency. The implementation of a binary tree key based scheme in satellite- terrestrial network is examined in this research. With a focus on satellite links for connectivity and secure communication between IoT device and ground stations. In comparison to other schemes such as Distributed logical key hierarchy (DLKH), Logical key Hierarchy (LKH) and Hyper graph schemes, binary tree key based scheme is evaluated based on its efficient key generation and distribution, improved security features, and minimized communication overhead. For large-scale IoT networks, binary trees provide a more durable and balanced structure. The binary tree architecture is used in this paper to offer an efficient algorithm for network routing and key distribution. Case studies and simulation results are presented and provide how binary tree can be effectively deployed to manage secure communication, achieving scalable, efficient for satellite terrestrial communication systems.