1. Department of Network Engineering, Universitat Politècnica de Catalunya, C/Esteve Terradas 7, 08860, Castelldefels, Spain
2. Department of Computer Science, University of Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy
3. IMT Lille Douai, URIA, and University of Lille, 20 Rue Guglielmo Marconi, 59650 Villeneuve-d’Ascq, France
4. Department of Computer Science and Information Systems, Birkbeck College, University of London, Malet Street, London WC1E 7HX, United Kingdom
5. imec-DistriNet, KU Leuven, Celestijnenlaan 200A – bus 2402, B-3001 Heverlee, Belgium