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

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

Flexgrid optical networking is an attractive solution for efficiently matching allocated
bandwidth with link demand but suffers from inevitable spectrum fragmentation. Spectrum …

Flexible grid optical networks (FONs) can accommodate diverse kinds of service
connections with higher networking flexibility and spectrum-utilization efficiency by …

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 …

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 …

As the most promising candidate for upgrading today's fixed-grid networks, the concept of
flexible grid has been introduced into elastic optical networks (EONs), which enables on …

We propose a novel RSA algorithm for dynamically-changing flexible-grid networks. The
proposed scheme can suppress spectral fragmentation and adapt to traffic-distribution …

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

In order to address the fragmentation problem in the time domain and the spectrum domain
in elastic optical networks, a fragmentation-avoiding spectrum assignment algorithm based …