1. Department of Information and Communication Technologies, Universidad Politècnica de Cartagena, Cartagena, Spain
2. IST/INESC-ID/INOV, University of Lisbon, Lisbon, Portugal
3. Institute of Telecommunications and Multimedia Applications, Universitat Politècnica de Valencia, Valencia, Spain
4. 2nd Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
5. Institute for Communication Technologies and Embedded Systems, RWTH Aachen University, Aachen, Germany
6. Institute of Telecommunications, AGH University of Science and Technology, Kraków, Poland