Aiming at the problems of mobile Ad hoc networks, such as limited network coverage, unstable connection, and vulnerability to malicious attacks when nodes cooperate, this paper combined with blockchain technology to increase the security and integrity of data and proposed a blockchain model for mobile Ad hoc networks based on Hashgraph. Firstly, this paper designed a clustering algorithm, which divided the nodes into different clusters, selected cluster heads to count the number of nodes in the cluster, and wrote them to events for propagation to ensure the smooth progress of consensus. Secondly, it optimized the Gossip protocol, and proposed the FS-Gossip(fast spreading Gossip) protocol, which reduced the blindness of neighbor node selection, improved the propagation efficiency, and increased the detection speed of new cluster nodes. Finally, it improved the complex consensus calculation in hashgraph, and proposed a propagation mechanism based on cluster head priority. The lightweight consensus and propagation mechanism was applied to nodes in the cluster to speed up event confirmation, reduce delay, and improve throughput. The simulation results verify the advantages of the model in terms of delay, throughput and propagation efficiency.

[2023-04-04] Accepted Paper /doc/2023.01.0020/v1

[2023-09-05] Printed Article /doc/2023.01.0020/v2