1. Institute for Cybernetic Science and Technologies (IUCTC), University of Las Palmas de Gran Canaria, Las Palmas, Spain
2. Department of Computer Engineering and Systems, University of La Laguna, San Cristóbal de La Laguna, Spain
3. Institute for Technological Development and Innovation in Communication (IDeTIC), University of Las Palmas de Gran Canaria, Las Palmas, Spain