Software Modeling -1- Elias Athanasopoulos, ICS-FORTH

WP3

Software Modelling

WISDOM Simulator

Elias Athanasopoulos*, Antonis Krithinakis, George Kopidakis(FORTH)

contact: elathan@ics.forth.gr

Brussels, June 2008

Software Modeling -2- Elias Athanasopoulos, ICS-FORTH

Initial Goals

- Develop a modular software platform

- Model optical components and examine their behaviour

- Simulate constructs based on combinations of different components

- Model everything under time constraints

- Build a platform for SAPI development

Software Modeling -3- Elias Athanasopoulos, ICS-FORTH

Initial Version

Main EngineMain Engine

WSimulator()

WNetworkFlow()WNetworkFlow()

WModule()WModule() WModule()WModule().......

SAPISAPI

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Provided Functionality

SOAMZI()SOAMZI()

A: ...0111001011...

A: ...0111001011...

C: ...111111111...

B: 10101

Y: ...000001000...

Optical pattern matching,proposed by Rod Webb (UCC).

SOA1

SOA2

A

B

C

Bandpass filter

C

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Closer Look

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Limitations

• Ability to simulate only the SOA-MZI device

• Not user-friendly, scripting (Ruby) is needed

• Not easy expandable for simulation of multiple devices

• No support for real-traffic

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Major Action Point from 1st Annual Review

Simulate more complex optical circuits

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New Features

• Ability to place multiple devices (scalability)

• User-friendliness

• More complex circuits (optical CRC)

• Real-traffic support

• Ability to simulate scenarios of the final demonstrator

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Current Look

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Current Look

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Further Steps

• Paper submission to:

- HotNets 2008 (deadline: mid July)

- INFOCOM 2008 (deadline: mid August)

- (Focus in WISDOM simulator’s architecture)

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5 Mins of Demo Time

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Thank you!

Elias AthanasopoulosICS-FORTH

elathan@ics.forth.gr

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Backup Slides

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Different Perspective

• Try to simulate more complex optical circuits• Try to develop abstract entities, which will serve as fundamental building components• Have the ability to build any optical circuit and stress it over time

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The Proposed Scheme

• Introduction of the following fundamental components:• Network flows• Connectors• SOAs

• What we essentially want to do is:• Build the SOA-MZI module, by using only the logic of SOAs

Software Modeling -18- Elias Athanasopoulos, ICS-FORTH

sim = WSimulator.new()

SOA1 = WSOAModule.new(:operation,"SOA1")SOA2 = WSOAModule.new(:operation,"SOA2")

A = FlowtoSOAConnector.new(WNetworkFlow.new("SpecificSeqFlow", "1010"))C = FlowtoSOAConnector.new(WNetworkFlow.new(”InitToOneFlow”, nil))B = FlowtoSOAConnector.new(WNetworkFlow.new("RandomFlow", nil))

OutputConnector = GenericConnector.new(:output)SOA1.setPins(A, C, OutputConnector)SOA2.setPins(C, B, OutputConnector)

sim.AttachModule(SOA1)sim.AttachModule(SOA2)sim.Run()

SOA-MZI

Software Modeling -19- Elias Athanasopoulos, ICS-FORTH

But…

We still have no deep knowledge of how SOAs are used to produce complex circuits

Essentialy, we know:

Digital Gates (AND, OR, etc.) Digital Circuits

But, we don’t know:

SOAs Optical Circutis

Software Modeling -20- Elias Athanasopoulos, ICS-FORTH