Low Altitude Satellite Constellation for Futuristic Aerial-Ground Communications

Abstract

This paper discusses the significance and prospects of low altitude small satellite aerial vehicles to ensure smooth aerial-ground communications for next-generation broadband networks. To achieve the generic goals of fifthgeneration and beyond wireless networks, the existing aerial network architecture needs to be revisited. The detailed architecture of low altitude aerial networks and the challenges in resource management have been illustrated in this paper. Moreover, we have studied the coordination between promising communication technologies and low altitude aerial networks to provide robust network coverage. We talk about the techniques that can ensure userfriendly control and monitoring of the low altitude aerial networks to bring forth wireless broadband connectivity to a new dimension. In the end, we highlight the future research directions of aerial-ground communications in terms of access technologies, machine learning, compressed sensing, and quantum communications.

Recent Advances of Deep Learning in Geological Hazard Forecasting

“…• Satellite data. Low Earth Orbit (LEO) satellite technology is well developed [24,25] and has provided a large amount of Earth observation data to the engineering field, leading to a significant increase in geohazard monitoring capabilities [26]. Four types of satellite data are commonly available [27]: Multispectral optical images for optical information analysis of the affected area [28]; High-resolution digital elevation model (DEM) [29]; Synthetic aperture radar images (SAR) [30] and interferometric synthetic aperture radar images (INSAR) [31]; GPS data for measuring surface deformation in the affected area [32].…”