A Novel Modularized Twin-Ring Wavelength-Division Multiplexer Access Network with Fiber-Fault Protection and Wavelength Tetra-Reuse

Abstract

A novel modularized twin-ring wavelength division multiplexer access network is proposed in this paper. By originally designing the switch module and the exchange module, the central office and the remote nodes are formed respectively. This gives the network both modularity and scalability. By using twin-ring topology, the architecture of network is constructed. It makes the network not only have high reliability, but also support wavelength tetra-reuse. By simulation, the mentioned functions are demonstrated. The simulating results show the network has good performance.

An Architecture Based on FDDC between any two ONUs for Optical Access Network

“…Similarly, the BER of all signals decreases as the received power increases. It can be seen from the figure that the BER curves of (ONU1 2 -to-ONU1 4 ) and (ONU1 4 -to-ONU1 2 ) are very close. This is because FDDC links between ONU1 2 and ONU1 4 are the same one.…”

An architecture based on FDDC between any two ONUs for optical access network

“…With the vigorous development of data centers, cloud computing, and 5G mobile communications [1] , higher requirements of non-blocking and efficient communications are proposed in optical access networks [2] . Direct communications between ONUs is an efficient approach to handle the above challenges [4] . So, the research on this project gradually becomes one of the hot projects of optical access network [5] .…”