Wavelength Assignment in Multi-Carrier Distributed Optical Ring Networks With Wavelength Reuse

A routing and wavelength assignment scheme in multi-carrier-distributed optical mesh networks with wavelength reuse

“…A multi-carrier-distributed optical network with wavelength reuse capability [3,4] is an attractive solution. This network is called the wavelength-reusable multi-carrierdistributed (WRMD) network.…”

“…Wavelength assignment for the WRMD ring network was presented in [4]. None of the source nodes includes an LD.…”

“…This model provides reference values, including upper and lower bounds, which are useful for benchmarking purposes. However, the schemes of both [4] and [12] are unable to change the routes of optical carrier connections and requested lightpaths since they are fixed. In practical cases, all routes of optical carrier connections and requested lightpaths are required to be designed to minimize the number of wavelengths.…”

A mathematical model for wavelength assignment in wavelength division multiplexing mesh networks with wavelength reuse

“…1 (b), the multi-carrier distributed optical network with wavelength reuse capability [1,2]. This network is called the wavelength reusable multi-carrier distributed (WRMD) network.…”

“…Wavelength assignment for the WRMD network was proposed in [2]. None of the source nodes include a LD, and instead each directly receives a generated carrier wavelength from the MCLS node or a reused carrier wavelength from other destination lightpath request node.…”