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Installing ns-3.37 and ns-3.35 in Ubuntu | Ubuntu 22.04 | NS3

Multiple Versions of ns3 in Ubuntu 22.04 In this post, we are going to install two versions of ns3 namely ns-3.35 and ns-3.37  My OS is : Ubuntu 22.04 LTS (Long Term Support) ns-3.35 uses waf and (./waf --run scratch/first)  ns-3.37 uses cmake  (./ns3 run scratch/first.cc) So we will install both the packages  Go through the video for complete instructions To start with  $ sudo apt update  $ sudo apt install build-essential autoconf automake libxmu-dev g++ python3 python3-dev pkg-config sqlite3 cmake python3-setuptools git qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 openmpi-bin openmpi-common openmpi-doc libopenmpi-dev autoconf cvs bzr unrar gsl-bin libgsl-dev libgslcblas0 wireshark tcpdump sqlite sqlite3 libsqlite3-dev  libxml2 libxml2-dev libc6-dev libc6-dev-i386 libclang-dev llvm-dev automake python3-pip libxml2 libxml2-dev libboost-all-dev  I have downloaded both the versions of ns3 fr

Integrated Circuits

Integrated Circuits

IC or Chip

Various gates are interconnected to form a circuit

14 to 64 pins for a typical IC

 

Levels of Integration

Small Scale Integration (SSI)

Less than 10 gates

Medium Scale Integration (MSI)

10 to 100 gates, adders, multiplexers

Large Scale Integration (LSI)

100 to few thousands of gates, processors

Very Large Scale Integration (VLSI)

Thousands of gates, complex computer Chips, memory arrays

Digital Logic Families

TTL (Transistor – Transistor Logic)

Widespread and this is the standard

Bipolar

ECL (Emitter Coupled Logic )

For high speed operation

Bipolar

MOS (Metal Oxide Semiconductors)

High component density

Unipolar

CMOS (Complementary Metal Oxide Semiconductors)

Useful where Low power consumption is needed

unipolar

 

Characteristics of digital logic families

Fan in

Number of inputs of an electronic gate

Physical logic gates with large fan in are slower compared to less fan in

image

The NAND gates have a fan in factor of 4

Fan out

Specifies the number of standard loads that the output of a gate can drive without impairing its normal operation.

Propagation Delay

Average transition delay time for the signal to propagate from input to output

image

A full adder has an overall gate delay of 3 logic gates from the inputs A and B to the carry output Cout shown in red

Power dissipation

Power consumed by the gate

Noise Margin

Minimum external noise voltage that causes an undesirable change in the circuit output

A full adder has an overall gate delay of 3 logic gates from the inputs A and B to the carry output Cout shown in red

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