The researchers say that there are apps that offer positioning with margins of error of just a few centimetres An app that can guide us through a hospital until we find the doctor's office, show us personalized information when we are looking at a particular painting in a museum, or help us find the best exit from a burning building. These are just some of the solutions that indoor positioning and navigation systems can offer our society. Even so, there is still no technology that is cheap and accurate enough for the consumer market. To drive research forward in this field and address the challenges in developing the technology, the Internet Computing & Systems Optimization (ICSO) group, affiliated with the UOC's Internet Interdisciplinary Institute (IN3), has joined the Delimited Indoor and Outdoor Positioning and Navigation Network (REPNIN+). This network of excellence's goal is to integrate the research and transfer work carried out in Spain in the field of so-called smart spaces. One of the results of this collaboration has been the publication of the