Abstract A novel Class-Based First Fit (CBFF) spectrum allocation policy is proposed for
dynamic flexgrid optical networks. The effectiveness of the proposed CBFF policy is …

Flex-grid optical networks (FONs) employ dynamic routing and spectrum assignment (RSA)
algorithms to support diverse services with heterogeneous bit-rates. Although these RSA …

In optical flexgrid networks, the optical spectrum can be allocated at a much finer granularity
than it can be in fixed-grid WDM networks and variable spectrum widths can be assigned to …

Traditional wavelength switched optical network employing wavelength-division-
multiplexing (WDM) technology, allocates constant spectrum band to different kinds of …

Future flexible-grid elastic optical networks are very promising due to their higher spectrum
efficiency and flexibility comparing to the rigid spectrum grid optical networks realized with …

Flex-grid optical network is a promising solution to meet the ever increasing varied traffic
demands by virtue of its capability to efficiently utilize the limited spectral resources in fiber …

We consider the problems of both static and dynamic resource allocation in spectrum
flexible (flexi-grid) optical networks. We present algorithms for planning such networks given …

Elastic flexgrid optical networks (FG-ON) are considered a very promising solution for next-
generation optical networks. In this article we focus on lightpath adaptation under variable …

Abstract The Flexi-Grid optical networks can elastically allocate spectrum tailored for various
bandwidth requirements. In the flexible architecture, routing and spectrum allocation (RSA) …

We compare three lightpath routing and spectrum allocation algorithms for the flexi-grid
optical transport networks. The three algorithms include shortest path first algorithm, grid …