Articoli correlati a Introduction to Network Simulator Ns2
Sinossi
An Introduction to Network Simulator NS2 is a beginners guide for network simulator NS2, an open-source discrete event simulator designed mainly for networking research. NS2 has been widely accepted as a reliable simulation tool for computer communication networks both in academia and industry.This book will present two fundamental NS2 concepts:i) how objects (e.g., nodes, links, queues, etc.) are assembled to create a network and ii) how a packet flows from one object to another. Based on these concepts, this book will demonstrate through examples how new modules can be incorporated into NS2. The book will:-Give an overview on simulation and communication networks.-Provide general information (e.g., installation, key features, etc.) about NS2.-Demonstrate how to set up a simple network simulation scenario using Tcl scripting lanuage.-Explain how C++ and OTcl (Object oriented Tcl) are linked, and constitute NS2.-Show how Ns2 interprets a Tcl Script and executes it.-Suggest post simulation processing approaches and identify their pros and cons.-Present a number of NS2 extension examples.-Discuss how to incorporate MATLAB into NS2.
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Introduction to Network Simulator NS2 is a primer providing materials for NS2 beginners, whether students, professors, or researchers for understanding the architecture of Network Simulator 2 (NS2) and for incorporating simulation modules into NS2. The authors discuss the simulation architecture and the key components of NS2 including simulation-related objects, network objects, packet-related objects, and helper objects.The NS2 modules included within are nodes, links, SimpleLink objects, packets, agents, and applications. Further, the book covers three helper modules: timers, random number generators, and error models. Also included are chapters on summary of debugging, variable and packet tracing, result compilation, and examples for extending NS2. Two appendices provide the details of scripting language Tcl, OTcl and AWK, as well object oriented programming used extensively in NS2. Introduction to Network Simulator NS2 can be used by researchers, professionals or graduate students studying telecommunication networks.
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