In mainland USA XM / Sirius uses COFDM towers in urban areas to overcome loss of satellite links due to high rise buildings.
But the quality of COFDM goes a little beyond good video quality. It also affords better penetration into buildings. Though Sirius / XM is basically an audio service, the digital stream allows video streaming to back seat passengers or hotels / motels can use it to distribute video within their facility.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.