1. Universidad Carlos III de Madrid, Madrid, Spain
2. Department of Engineering, University of Perugia, Perugia, Italy
3. Telcaria Ideas, Leganés, Spain
4. Department of Automatica, Universidad de Alcala, Alcalá de Henares, Spain
5. Telematics Engineering Department, Universidad Carlos III de Madrid, Leganés, Spain
6. Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel, Brussel, Belgium