IONSS: Indirect Observation Node Selection Scheme in Trust Management for UAV Network

As a three-dimensional distributed network, the UAV network is very critical for communication security. The current security approaches for UAV are mainly traditional secure schemes, such as encryption, authentication, and etc. Unfortunately, these secure schemes could not defend against the internal attacks. Simultaneously, as an effective technology to defend against the internal attacks, this is, a trust management technology, has security vulnerabilities in the third party recommendation. Nevertheless, there is also the risk of cyber holes in UAV network. In this paper, we propose an indirect observation node selection scheme (IONSS) to solve these issues. For all current indirect observation nodes, their energy levels are sorted to select the appropriate nodes. The Grey-decision calculation is performed and sorted with the attribute of these nodes, and the previous nodes are preferentially selected as the indirect observation nodes. The simulation results show that the balance between security and energy efficiency.