Broadband Communications, Networks, and Systems 9th International EAI Conference, Broadnets 2018, Faro, Portugal, September 19-20, 2018, Proceedings - Sucasas, Victor; Sucasas, Victor; Mantas, Georgios; Mantas, Georgios; Althunibat, Saud; Althunibat, Saud (Springer International Publishing : Imprint: Springer, 2019)