Providing Narrowband IoT Coverage with Low Earth Orbit Satellites
- Author:
Kenneth M. O’Hara and Gregory J. Skidmore
Non-terrestrial wireless networks have unique advantages that make them important components in the heterogeneous 5G global system of networks. Non-terrestrial networks (NTN) play a critical role providing service to locations not covered by terrestrial 5G networks, such as rural and remote areas, moving platforms and disaster-stricken zones.
This article describes the modeling of a SATCOM link, specifically the use case of using a satellite overlay to extend service continuity to IoT devices in a poorly covered rural area. The discussion focuses on how satellite coverage can be modeled using predictive simulation. Such models can simulate the SATCOM channel, capturing important effects such as terrain masking, shadowing due to foliage, and multipath fading, which are essential to a proper evaluation of the link budget.
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