Table 1 Summary of related work

[27]

To extend the coverage of wireless systems

The authors only considered the free-space or LoS communication scenario

In our work, we considered both LoS and NLoS communication scenarios

[28, 29]

Characteristics of wireless links were analysed in both 2D and 3D space through field experiments using UAVs having a wireless radio and an AP

The authors only experimented 802.11a with two antenna orientations. Also, the system performs well only if the right antenna orientation is deployed on UAV

In our work, we experimented all the IEEE 802.11 standards in both LoS and NLoS scenarios. Also, we did not consider antenna orientation in our work, which means that the system is free of any orientation constraints

[30–32]

The performance of UAV-network in terms of throughput and link quality was measured in a two-hop network

The authors only measured the performance of 802.11a/ac and 802.11s. the authors claimed that the system only performs better if the horizontal dipole antenna is in a perpendicular direction to the UAV flight

In our work, we performed the same set of experiments but with an extension of 802.11b/g and n. Also, in our work, we considered both direct (LoS) and indirect (NLoS) communication scenarios in order to validate our proposed work

[33, 34]

Challenges of wireless communication between UAVs equipped with cameras to deliver high-resolution images to rescuers in search and rescue operations were investigated

The authors only tested 802.11n and also concluded that the throughput calculated during the experiments is far from the theoretical maximum. The authors also observed that the throughput varies drastically even at a constant distance between UAVs

In our work, we experimented all the possible 802.11 standards (a/b/g/n) and also claimed a throughput that is enough for both audio and video streaming in real-time communication during a disastrous situation