Research on cross-domain network situation-based trust management in multiple constellations

With the rapid development of communication and networking technologies in satellite networks, cross-domain heterogenous satellites establish connectivity with each other and provide various data services, which bring serious challenges to satellite networks, such as inaccurate trust evaluation and cross-domain mistrust of satellites. Therefore, it is particularly important to build a trust system to evaluate trust of satellites. To evaluate the trustworthiness of satellites based on cross-domain network situation and multi-dimensional trust opinions, a cross-domain network situation-based trust management in multiple constellations was proposed. The multi-dimensional trust opinions in multiple constellations was considered, and quantile-quantile plot trust filtering mechanism was designed. Then, trust opinions and trust thresholds were weighted to identify the trustworthiness of satellites. Experiment results show that the proposed method outperforms baselines in terms of accuracy, precision, recall, and F-value.