SIMTON: A Simulator for Transparent Optical Networks

Abstract

In this article we present a software to simulate Transparent Optical Networks (SIMTON). SIMTON is an eventdriven simulation software implemented in C++ which takes into account optical device characteristics for the evaluation of network blocking probability in wavelength routed transparent optical networks. The simulator uses a physical layer model that considers the following effects: device losses, fiber attenuation, four wave mixing, residual chromatic dispersion and polarization mode dispersion in optical fibers, gain saturation in optical amplifiers (Erbium Doped Fiber Amplifier), dependence of the amplified spontaneous emission noise with the input power in EDFA, in-band crosstalk in optical switches, and source spontaneous emission noise of the laser transmitter. By using SIMTON it is possible to adjust the parameters of the optical devices, as well as to choose the routing and wavelength assignment algorithm. Moreover, the tool has a graphical interface. We also present some examples of network analysis results obtained from SIMTON.

Spectrum Continuity and Contiguity based Dedicated Protection for Flexible Optical Networks

“…The SIMTON simulation tool [22] was adapted to evaluate the blocking probability of dedicated path protection algorithms in survivable EON scenarios. For each network simulation, a set of 100,000 calls is generated with source-destination node pairs selected by using a uniform distribution.…”

A Defragmentation-Ready Simulation Framework For Elastic Optical Networks

“…Since EON technology is the direct evolution of the WDM networks, and as mentioned in Section II-A, the RSMA problem has its roots in the RWA problem, we started our search by looking for WDM simulation tools. From the myriad of simulation tools found, some solutions focused on the RWA and grooming problems [40], [41], whereas others take in consideration more complex physical layer modeling [42]. Unfortunately, those simulators were not updated to support Elastic Optical Networks.…”

Comparing OSNR based policies for an adaptive-alternative IA-RWA algorithm applied to all-optical networks

“…IV. SIMULATION SETUP We used the SIMTON simulation tool [13] to estimate the blocking probability for the RWA algorithms. The SIMTON uses the physical layer model described in [4].…”