I have already found some reference authors who model some parts of the system, for example, sensor, transceivers, link, propagation space, the network itself and, sometimes, putting it all together, but they are somewhat limited because they do not constitute a global model confronted with reality.

There is a lack of information. Today's models are useful for their purposes, but I'd like to know more about real-world cases, such as smartwatches that communicate with our mobile phone apps and a complete AI network set up to manage our daily lives. Is there any academic model for this?

I am putting this here to perhaps start a debate, trying to understand how technology can help our quality of life. And how the models, more precisely the energy efficiency ones, were modeled and how they are put into practice. Or today we live in an ad hoc scenario, where things become useful and overcome each other by trade advantages and convenience only.