Animation of mulitple UAVs flying over terrain and communicating wirelessly

We are looking to create a realistic animation of multiple UAVs flying over terrain and communicating wirelessly. The animation should clearly demonstrate the wireless communication capabilities of the UAVs. We would like the terrain to have a moderate level of detail, but just basic features will be necessary. The desired duration of the animation is less than 1 minute. We want the final product to be a realistic animation that effectively and clearly demonstrates the wireless communication capabilities of the UAVs.