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Long-Reach (LR) extension is a promising scenario for the future next generation access networks, enabling less Central Offices (COs) in the field and a large number of customers in the access/metro area. Because of the large propagation time between OLT and ONUs, inefficiency occurs in the Dynamic Bandwidth Allocation (DBA) upstream protocols. To solve this drawback, a new efficient DBA protocol,...
Long-Reach (LR) extension is a promising scheme for future next generation access networks, enabling less Central Offices (COs) in the field and a large number of customers in the access/metro area. Because of the large propagation time between ONUs and OLT, inefficiency occurs in the Dynamic Bandwidth Allocation (DBA) protocols. To solve this drawback the GPON Redundancy Eraser Algorithm for Long-Reach...
In this paper, offered and new broadband services for residential customers are considered in Passive Optical Networks (PONs). The user bit rates together with QoS requirements are evaluated for the availability of the services in the PONs, according to the number of users and the network bit rates deployed. Traffic forecast is also estimated for the next future access services evolution and for the...
An application of optical burst switching (OBS) and, particularly, wavelength routed OBS (WROBS) to access networks is presented. A dynamic bandwidth allocation (DBA) distributes the bandwidth resources combining time division multiplexing (TDM) and WROBS. To provide quality of service (QoS) supporting differentiated services, prioritizing classes of service (CoS) is considered to manage the DBA module...
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