It's usually the transmit side, if you can do it, that's most useful. Even cheap receiver designs can manage a 3dB NF these days, and with the best will in the world, you won't improve that by more than 2dB - and at that, depending to some extent on the band in use, you'll be limited in fact by atmospheric and solar noise coming in the antenna.
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.