Recent Trials of G.metro-Based Passive WDM Fronthaul in 5G Testbeds. - Zou, Jim; Eiselt, Michael; Alfageme, Manuel; Agusti, Juan; Teres, Carles; Ciria, Paula; Veisllari, Raimena; Fontaine, Mickael; Elbers, Jörg-Peter (2019)