BBU location algorithms for survivable 5G C-RAN over WDM

Numerical results evaluate cost in relation to main design constraints, namely the number of hops allowed to reach primary and backup BBU hotel. The number of BBU hotels is compared for different location algorithms, showing that a proposed extension of a classical FLA, by including resilience, allows to obtain the best results both in terms of BBU hotels and shared ports. However, the need of suitable trade-off between the number of BBU hotels and the required wavelengths is outlined, depending on relative costs.