Scalable Advanced Ring based passive Dense Access Network Architecture
SARDANA (Scalable Advanced Ring-based Passive Dense Access Network Architecture) project targets the performance enhancement of dense Fibre-to-the-Home networks, also called PONs (Passive Optical Networks). They constitute a funda...
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Descripción del proyecto
SARDANA (Scalable Advanced Ring-based Passive Dense Access Network Architecture) project targets the performance enhancement of dense Fibre-to-the-Home networks, also called PONs (Passive Optical Networks). They constitute a fundamental segment with the required potential to match the huge capacity of transport networks with the new user communication demands, where deeper research is still to be performed. The two key performances that this project aims at radically improving are the scalability and the robustness, since they constitute pillars of such a cost-sensitive segment. Scalability is reached by means of the new adoption of remotely-pumped amplification, a WDM/TDM overlay and cascadable remote nodes in a new hybrid architecture; it allows smoother growth and migration while keeping the passiveness of the PON and reducing civil work investments. The resulting network is able to serve between 1000 and 4000 users with symmetric several hundred Mbit/s per user, spread along distances up to 100 km, up to 10Gbit/s. Robustness is achieved by means of passive central-ring protection and new monitoring and electronic compensation strategies over the PON, intelligently supervising and controlling the impairments that are present or can be present in a 10Gbit/s extended PON.