DBA dis-aggregation in PON-OLT with scalability enhancement by REPORT/GATE compression [Invited]

Abstract

The dis-aggregated passive optical network (PON) optical line terminal (OLT) architecture is attracting attention in academia and industry. This paper first reviews the evolution in dynamic bandwidth allocation (DBA) dis-aggregation. We further enhance the scalability of the dis-aggregated PON-OLT by reducing the bandwidth overhead of REPORT/GATE, the time division multiplexing (TDM) control information transferred between dis-aggregated DBA and the hardware platform. Our experiment verifies that the data compression based on basic integer coding can improve the scalability by 27% with acceptable processing time.

Energy Conservation in Passive Optical Networks: A Tutorial and Survey

“…The global knowledge of the network state in an SDN controller simplifies introducing more advanced networking functions, services, and applications [127]. The integration of SDN in PON will facilitate cost-efficient, flexible and speed services creation and faster upgrade of any function whenever required such as due to standard evolution and advent of network security threads [152]- [156]. For example, as lighted by Nishimoto et al in [156] that a software form of DBA provides service providers with the opportunity to update the DBA to meet the requirement of new services they wish to deploy.…”