Viasat Outage Predictions

At Viasat, I worked on a web application to predict in-flight Wi-Fi outages and degraded quality based on a flightplan. This allowed customers to plan virtual meetings in advance and also predict when they would be unable to stream Netflix.

Computational Geometry

In order to detect outages, I implemented a computational geometry library capable of merging polygons and tracking intersections between a polygon and a line. Outages occur when a plane enters a region with no coverage or when it enters a different satellite beam. The algorithm I developed using this library efficiently calculated the outages for any line drawn across a world map with many satellite beams, like the one below.

This image depicts many polygons representing satellite coverage over a map of the world.

A sample of what satellite coverage beams looks like

Technical Details

Web app built using Angular, HTML, and CSS
API built using Java and Spring Boot
Computation geometry library built using Java
Data streamed from Kafka to Dynamo DB
Web app deployed to AWS via Elastic Beanstalk
Serverless microservices deployed to AWS using S3, SQS, and Lambda