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Multi-UAV networks are often referred to as flying ad hoc networks (FANET). In a FANET, all UAVs establish an ad hoc network, and only a subset of the UAVs connect to the infrastructure; the others use intermediate UAVs to communicate with the ground controller in a multi-hop way.
In the clustering approach, as shown in Figure. Each UAV can be seen as a node, and the UAV nodes are divided into different clusters. Within the effective communication range of the nodes, these UAV nodes can communicate directly with each other, sharing channels and resources. Each cluster chooses a cluster head that is responsible for managing inter-cluster and intra-cluster communication. The remaining UAVs within a cluster are called cluster members. Suitable cluster head selection strategy and efficient cluster management can reduce communication overhead, enhance network scalability, and maximize network throughput.
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IEEE/ICACT20220096 Slide.04
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