US 2003/0158719 A1 · Self similarity based high speed traffic simulator

Abstract

A traffic simulator for simulating traffic events in a network, in which the events behave according to one or more statistical models. One or more event sources, are used for randomly issuing one or more events at discrete time slots within a predefined maximum event period. If only one of the sources issues an event at specific time slot, the event is output into an Event Labeler, and if more than one event is being issued at a specific time slot, one of the events is selected and output into the Event Labeler and the rest of the events are postponed to the next time slot. In case more than one event is postponed to a next time slot, one of the postponed event, or possibly a newly issued event, is selected in the next time slot according to a predetermined output selection policy. The selected event is then output to the Event Labeler. An Event Labeler is used to label a destination, being randomly selected from a given list of destinations, to each output event.

Claims20

Dependent claims

A method for simulating traffic events in a network, in which said events behave according to one or more statistical models, comprising:

a) Providing one or more event sources, each of which being capable of randomly issuing one or more events at discrete time slots within a predefined maximum event period;
b) Issuing traffic events by said sources;
c) If only one of said sources issues an event at specific time slot, outputting the event into an Event Labeler.;
d) If more than one event being issued at a specific time slot, selecting one from said events, outputting the same into said Event Labeler, and postponing the rest of the said events to the next time slot;
e) If more than one event is postponed to a next time slot in step (d), selecting in said next time slot one postponed event or possibly a newly issued event, according to a predetermined output selection policy, and outputting the selected event to the Event Labeler;
and
f) Labeling by said Event Labeler a destination to each output event, said destination being randomly selected from a given list of destinations.

4 more elements

An event generator for generating traffic events, comprising:

a) One or more event sources each of which being capable of generating a traffic event, comprising:
a.1) An inter-arrival time generator capable of generating a random value whenever a generate signal is provided to it;
a.2) A discrete time generator for generating sequential readable discrete time count;
a.3) A scheduling unit for receiving said random value and a time count, storing a sum of said random value and time count whenever said generate signal is issued, and outputting an event indication whenever the time count is greater than or equal said stored sum;
b) An arbitration unit for receiving in its input event indications from the scheduling units, selecting one of said event indications, and issuing an event output signal indicating the originating source of said event, and an event acknowledge signal that is provided to the respective originating source;
wherein said event acknowledge signal performs as a new generate signal for the inter-arrival time generator.

3 more elements

Dependencies are inferred from the claim text.

Self similarity based high speed traffic simulator

Life of this patent

Self similarity based high speed traffic simulator

Life of this patent

Abstract

Claims20