Features of UAV Networks
Key Issues- Mesh or Star networks.
- Flexible deployment and management of new service using SDN.
- Routing protocol be adaptive in nature.
- Contribution towards greening of the network.
- Multi-tasking.
- Large converage area.
- Easily reconfigurable for varying missions.
- Frequently change in network topology.
- Relative position of UAV may change.
- Malfunctioning of UAVs.
- Intermittent link nature.
- Lack of suitable routing algorithm.
UAV Network Constraints
UAV Network Advantage
UAV Network Topology : Star
- Typically two types -
- Star configuration.- Multi-star Configuration .
- In Star Configuration , UAV is directly connected to the ground station.
- In Multi-star Configuration, UAVs form multiple star topology . One node from each group connects to the ground station.
- High latency.
- Highly dependent on ground station.
UAV Network Topology : Mesh
- Typically two types -
- Hierarchical Mesh Network.
- Flexible
- Reliable
- Nodes are interconnected
- More secure
FANETs : Flying Ad Hoc Networks
- Network formation using UAVs which ensures longer range, clearer line of sight propagation and environment-resilient communication.
- UAVs may be in same plane or organized at varying altitudes.
- Besides self-control, each UAV must be aware of the other flying nodes of the FANET to avoid collsion.
- Popular for disaster-time and post-disaster emergency network establishment.
Feartures :
- FANET Inter-plane communication
- FANET Intra-plane communication
- FANET - Ground Station communication
- FANET - Ground Sensor communication
- FANET - VANET communication
Ad-Hoc FANETs
- A2A links for data delivery among UAVs.
- Heterogeneous radio interfaces can be considered in A2A links, such as XBee-PRO (IEEE 802.15.4) and Wi-Fi (IEEE 802.11).
- Ground networks may be stationary WSNs or VANETs or Control stations.
- UAV-WSN link-up may be used for collaborative sensing as well as data-muling.
FANETs & VANETs
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