Quick-and-dirty data analysis through GUI - unipi.it

Data Analysis

• Quick-and-dirty data analysis through GUI

– Double click on a .sca/.vec file

– Create an analysis file (.anf)

– Browse the file using drop-down menus and/or regular expressions

– Plot graphs using built-in plotter

• Batch data extraction using command-line program “scavetool”

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Properties…

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.sca vect plot

Apply -> Mean

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.sca vect operation

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.sca vect plot

Apply -> Other…

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INET

Overview

• Intro

• Mobility

• IP networks

• Applications

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INET

• Open-source model library for OMNeT++

• Useful to quickly develop the standard part of your project

• Models for:

– Internet stack– Wired and wireless links– Support for mobility– Application models– QoS support (DiffServ MPLS)

• Made of extensible components

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Mobility

• Modeling the capability of an object to move in a 3D spaceover time

• Why?– Analyze mobility aspects.

– Analyze the effects of mobility on the system

• INET provides mobility modules that can be integrated intocompound modules.

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NED definition

import inet.mobility.single.LinearMobility

module MobileNode

{

submodules:

linearMobility: LinearMobility {

}

}

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GUI

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Network definition

import pecsn.MobileNode;

network MobileNetwork

{

parameters:

@display("bgb=500,500,white;");

submodules:

mobileNode: MobileNode {

}

}

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Scenario definition

[General]

network = MobileNetwork

sim-time-limit = 50s

**.mobileNode.linearMobility.speed = 100mps

**.mobileNode.linearMobility.constraintAreaMinX = 0m

**.mobileNode.linearMobility.constraintAreaMinY = 0m

**.mobileNode.linearMobility.constraintAreaMinZ = 0m

**.mobileNode.linearMobility.constraintAreaMaxX = 500m

**.mobileNode.linearMobility.constraintAreaMaxY = 500m

**.mobileNode.linearMobility.constraintAreaMaxZ = 500m

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Flexible mobility definition

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Within your mobile node

In the .ini file

Usage

• Often used by wireless interfaces to perform tx/rx related operations

• The mobility module offers various interfaces for obtaining information on the current mobility (position, speed, etc.)

• E.g. compute distance between two nodes to evaluate pathloss, delay, etc.

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Example

• Create a simple module pilot with a parameter posCheckInterval

• Create the associated class

– Read the value of the parameter

– Get access to the mobility module

– Configure a time to trigger every posCheckIntervalseconds

– When the timer fires, print the current position of the node

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IP-Network node

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Standard Host

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IP Network

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Applications

• INET provides you:

– A set of pre-made application models

– Base classes for UDP and TCP base applications

• Select from .ini one of the available models

• Extend the IUDPApp module and implement the corresponding class interface

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Managing addresses

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