So you have been asked to design for this: A predictive model won't even get you close here. The environment is too complex. You need to do an APoS survey to find out what the RF actually does in an environment like this. So what is an APoS survey? APoS stands for AP on a stick. APoS surveys are used in the design phase of a deployment. While they are very useful they are not always done. APoS is more accurate than a predictive however, it is often not done due to time