Abstract: A computer-implemented method and system are provided for forecasting traffic load on a communications network driven by market factors.

Abstract: Methods or systems for management and/or optimization of at least a portion of a data network by generating a set of paths between each origin and destination pair, pruning the set of paths to generate a pruned set of paths; and computing an optimum path between each origin and destination pair. Methods and systems for generating a diverse set of path options for the routing of traffic within at least a portion of a network comprising: generating a set of paths between each origin and destination pair; and pruning the set of paths to generate a pruned set of diverse path options within at least a portion of a network.

Abstract: A system for providing a runnable computer simulation model comprises a design automation software product for enabling a designer to create a simulation model including interconnected component and/or subsystem models. The system also comprises a simulation content file creation means for creating a simulation content file that includes information describing the simulation model; and a simulation player software product including means for reading the simulation content file. The simulation player software product enables an end user to run the simulation model based upon the information in the simulation content file, but does not allow the end user to add or remove component models, subsystem models or interconnections of the simulation model.

Abstract: A method of optimising the componentry of an optical data transmission link, the link comprising a series of optical components interconnected by a fiber network, the method comprising the steps of: (a) calculating an equivalent fiber representation for the link; (b) utilising an optimisation algorithm to eliminate redundant optical components from the link; (c) utilising an optimisation algorithm to determine the input channel power of the link.

Abstract: A system for providing a runnable computer simulation model comprises a design automation software product for enabling a designer to create a simulation model including interconnected component and/or subsystem models. The system also comprises a simulation content file creation means for creating a simulation content file that includes information describing the simulation model; and a simulation player software product including means for reading the simulation content file. The simulation player software product enables an end user to run the simulation model based upon the information in the simulation content file, but does not allow the end user to add or remove component models, subsystem models or interconnections of the simulation model.

Abstract: A method of optimising the componentry of an optical data transmission link, the link comprising a series of optical components interconnected by a fiber network, the method comprising the steps of: (a) calculating an equivalent fiber representation for the link; (b) utilising an optimisation algorithm to eliminate redundant optical components from the link; (c) utilising an optimisation algorithm to determine the input channel power of the link.

Abstract: A method for estimating a measure of the quality of the received signal in a computer simulation of an optical transmission system, wherein the simulation includes additive optical noise generated by components within the transmission system. One or more sets of parameters of a first non-gaussian probability density function are calculated so as to approximate a suitable fit to the amplitude distribution of the received signal, including the effects of deterministic processing in the receiver but excluding the effects of statistical noise fluctuations introduced by the receiver.