Encompassing ROADM add/drop constraints in GMPLS‐based WSONs

Abstract

Different reconfigurable optical add/drop multiplexer (ROADM) architectures can be considered for the deployment of cost-effective wavelength switched optical networks (WSONs). They impose add/drop constraints that might significantly affect the efficient utilisation of the overall WSON resources.In this paper, the most relevant ROADM architectures and related constraints are first reviewed and discussed. Then novel provisioning schemes are proposed to effectively handle different ROADM architectures and provide a preference on the utilisation of add/drop resources with limited flexibility. The schemes are specifically designed to exploit the recently introduced generalised multiprotocol label switching extensions for the advertisement of capacity and/or availability of ROADM add/drop resources. Simulation results show that the proposed schemes guarantee the effective utilisation of the add/drop ROADM resources under several WSON scenarios.

High-Reliable WDM Optical Access Network Expanding by Double-Fiber-Tangent Ring

“…There is a great progress in optical fiber communication in recent years [1][2][3][4]. In the aspect of access network, PONs are considered to be the ultimate solution in the FTTH.…”

High‐reliable multi‐wavelength optical access network expanding by a single‐fiber tangent ring

“…In recent years, there has been great progress in communication technology in optical communication [1][2][3][4]. Passive optical networks (PONs) are considered to be the ultimate solution in the Fiber-to-the-Home communication.…”