This is a short explanation on how I added NS-3 (version 3.6) to Eclipse (Galileo). I use first part from NS-3 Wiki

Adding Mercurial to Eclipse

First download eclipse IDE for C++ developers from http://www.eclipse.org
* Install eclipse into you operating system
* Install mercurial eclipse plugin:
- Go to help->software update
- Click on available software
- Click on add a site
- Add http://www.vectrace.com/eclipse-update/ taken from http://www.vectrace.com/mercurialeclipse/ then click on mercurialeclipse and check the box and click on install
* We suppose that you already have mercurial installed on your machine

Making a Clone of NS-3 in Eclipse

After you that you need to add the NS-3 from the repository:

Select: New -> Other, and it would be like picture below:

Eclipse mercurial after new project

Then press next. now you need to enter “Repository location URL” that is: http://code.nsnam.org/ns-3-dev

in case you want to have different versions of the NS-3 you need to define the “Clone directory name”, in the figure below I chose ns-3.7-dev

Clone the NS-3 to workspace

Now you just need to wait for the project files be cloned. then you will find a copy of the project you wanted like below:

A clone made of NS-3.7-dev in clipse

Since the folder is not know as a C++ project it is necessary to be converted to so right click on project name and select: new -> convert to a C/C++ project the rest of settings should be same as picture below:

Convert to C++ project

Configuring the Build system

We know that build system for NS-3 is Waf so we need to change the build configuration from build/make to Waf. so right click on project and select the properties then choose the “C/C++ Build”.

In the “Builder setup” choose “External Builder”

Remove the check from “Use default build command”

change “Build command” to ${workspace_loc:/ns-3.7-dev/waf}

Behaviour setting

in Behavior tab, clear both “Build on resource save (Auto save)” and “Build (Incremental build)

Behaviour setting

Now all you need to do is to push  apply and Ok. you will notice that Waf starts to build the whole project.

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ACTION:	[s|r|D]: s -- sent, r -- received, D -- dropped
WHEN:	the time when the action happened
WHERE:	the node where the action happened
LAYER:	AGT -- application,
	RTR -- routing,
	LL  -- link layer (ARP is done here)
	IFQ -- outgoing packet queue
               (between link and mac layer)
	MAC -- mac,
	PHY -- physical
flags:
SEQNO:	the sequence number of the packet
TYPE:	the packet type
		cbr -- CBR data stream packet
		DSR -- DSR routing packet (control packet
                generated by routing)
		RTS -- RTS packet generated by MAC 802.11
		ARP -- link layer ARP packet
SIZE:	the size of packet at current layer, when packet goes down,
        size increases, goes up size decreases
[a b c d]:	a -- the packet duration in mac layer header
		b -- the mac address of destination
		c -- the mac address of source
		d -- the mac type of the packet body
flags:
[......]:	[
		source node ip : port_number
		destination node ip (-1 means broadcast) : port_number
		ip header ttl
		ip of next hop (0 means node 0 or broadcast)
		]

via Ke Liu’s NS2 Code and Q&A.

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A very good article about OFDM and OFDMA :

3G and 4G Wireless Blog: OFDM and OFDMA: The Difference.

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For me it was not easy to have Bookmark bar and a toolbar visible  and still not thinking about those spaces wasted under them, so I tried these Safari style for Firefox which helped me to save some space, you can have “Hide menu” plug-in to as well.

Thanks for Installing the new Foxdie!.

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Years ago we could listen to part of the concert from its poster in Sci-Fi Movies, and now it is really possible. Smart posters are equipped with a tag to provide a wide range of information such as audio, video, phone number, contact information, map or simply text.

Suppose you find a smart poster advertising a new mall somewhere, you can either find the address in bottom of the map or just close your phone to read the address, a small map and a picture of the building even a contact phone. Cool! now we know all we need to get to the mall.
To surprise the seller can offer a discount coupon to those who has read the tag.

To get the idea watch the video showing the function (not by me):

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E-payment or e-wallet which is actually implemented as m-wallet is the biggest shot of NFC. Use of m-wallet in e-ticketing is replacing the current payment method such as mobile (SMS, web based) payment or using traditional plastic card. New generations of contactless Mastercard (paypass) or Visa (paywave) cards are available in market for customers. Currently operators are offering mobile payment with NFC-enabled mobile phones. According to reports by 2010 NFC phones are able to replace all kind of payment card or mobile based payment systems.

[NFC Congress, NFC Mobile Payments. [PDF Document] Hagenberg, Austria : TELEFÓNICA CZECH REPUBLIC a.s., 2009]

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Street at night passgin ront light car trail, originally uploaded by arash_m.

I like photos at night and long open shutter pictures… this is the street behind our building.

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A balanced amplifier has two amplifying devices that are run in quadrature. That is, they are operating 90 degrees apart in transmission phase. A quadrature coupler or splitter on the input phase-shifts the two signals 90 degrees at the amplifier inputs, then a second quadrature coupler on the output “un-phase-shifts” the signals at the amplifier outputs so they combine in phase.

via Balanced Amplifiers – Microwave Encyclopedia – Microwaves101.com.

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Obviously it is not an easy life for viruses in a linux box, read the article it’s well explained.

The short life and hard times of a Linux virus

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After installed this plugin and tried to activate instead of dashboard I got an error message ” …The used table type doesn’t support FULLTEXT indexes…” DO NOT PANIC read below :

If you receive an error like “The YARPP database has an error which could not be fixed.” or “…The used table type doesn’t support FULLTEXT indexes…” after installing YARPP, either your database username does not have access or you need to change your database engine for “wp_posts” from InnoDB to MyISAM.

to solve the aceess problem visit here and try to run SQL manual.

To change the engine goto to myPhpAdmin and select “wp_posts” table>operations->engine.

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