YANG Zhuang, HE Yan, ZHANG Ao. Research and Implementation of Gigabit Ethernet Passive Optical Network System[J]. Acta Electronica Sinica, 2004, 32(S1): 78-81.
YANG Zhuang, HE Yan, ZHANG Ao. Research and Implementation of Gigabit Ethernet Passive Optical Network System[J]. Acta Electronica Sinica, 2004, 32(S1): 78-81.DOI：
Ethernet-Passive Optical Network is playing a vital role in today's fibre to the home broadband access engineering.Delay compensation
Dynamic Bandwidth Allocation (DBA) and bridging are key technologies in EPON system design.To avoid several ONUs transmit collision and realize the ONU's plug and play function
absolute timestamp was used in the round trip delay compensation design
thus calculation of the round trip time (RTT) and ranging process can be easily done on timestamp bases.Also a native statistic algorithm based on each LLID
combining with its Service Level Agreement (SLA) and RTT value
was deployed in upstream DBA.It can bring low delay and high efficiency to bandwidth allocation.The proposed dynamic filtering database method was applied in EPON center system bridging
which achieved one OLT to many ONUs logic link MAC emulation
to comply with the traditional Ethernet LAN.These solutions have been tested strictly in WRI 863 RD project and the results all accord with the anticipated analysis.The field experiment data given prove that the prototype system behaves very well when running triple play services.
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