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In this paper, we proposed a bandwidth-variable TWDM access network structure which could simultaneously support upstream, downstream and peer-to-peer (PtP) communication directly inter ONUs based on the LCoS-based tunable bandwidth WSS in RN. The WSS improve the network flexibility due to its scalable technology and programmable filtering characteristics. Equivalent experiments are performed to demonstrate...
We propose an energy-efficient mechanism and a corresponding multi-dimension dynamic bandwidth allocation (DBA) algorithm for long-reach Ethernet passive optical networks (LR-EPONs). Time delay was reduced and upstream bandwidth was increased by 10%, and energy saving is increased by 90% when load is small.
We propose an all-optical WDM multicast scheme for supporting emergency multicast service in WDM-OAN based on FWM in SOA. One-to-eight 10 Gb/s NRZ-DPSK WDM multicasts have been successfully transmitted over 10 km fiber in the case of FWM occurring in OLT and RN.
A simultaneous all-optical WDM multicast and unicast scheme with large bandwidth for WDM optical access network by using a multicast module based on FWM in SOA has been proposed and verified. Two strategies of setting the multicast module have been discussed to apply this scheme to passive optical network and active optical network. One-to-four WDM multicasts of 10Gb/s NRZ-OOK signal are successfully...
Proposed in paper is a clustered LR-PON with hierarchical architecture and multi-dimension DBA, applying MPCP and PPPoE to tree topology and star topology. The DBA scheme is based on dimensions of wavelength, frequency and time.
Proposed in this paper is a 10-Gbps uplink transmission over 25-km fiber in WDM-PON, in which band-limited RSOAs are applied to colorless ONUs and cascaded Mach-Zehnder Interferometers are used as three-tap optical equalizers in OLT.
A new scheme of Colorless ONU with RSOA-Assisted Michelson Interferometer is proposed, for Rayleigh Backscattering suppression in single fiber WDM-PON systems. Simulations and discussions have been conducted to validate the proposal. The results are useful for designing cost-effective Multi-Wavelength PON or Point-to-Point Radio over Fiber system.
Proposed in this paper is a dual routing engine-based routing architecture for multi-domain multi-layer networks. An interpreter-based modeling of the group engine is discussed and a preliminary routing strategy is designed with consideration of scalability and flexibility.
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