A Review of UAV Ferry Algorithms in Delay Tolerant Network

摘要

The Delay Tolerant Network (DTN) is suitable for post-disaster environments where infrastructure is scarce. Search and rescue operations require network deployment in areas not covered by infrastructure. In the post-disaster DTN environment, UAVs are introduced as ferry nodes for messagepassing and it is a popular practice recently. This paper introduces the application of Delay Tolerant Network in postdisaster environments and introduces message-passing through ferry nodes in DTN. Next, this paper analyzes the UAV’s ferry algorithms from the perspectives of UAV network architecture, node routing algorithm, node deployment, node trajectory optimization, node energy optimization and node storage allocation optimization in DTN. The application of UAV ferry algorithm in post-disaster DTN environment is analyzed, and the performance evaluation as well as the comparison of different algorithms are given. Finally, this paper looks forward to the future research direction of UAV ferry algorithm in DTN environment.