NS2 is a discrete event simulator targeted at networking research. NS2 provides substantial support for simulation of routing protocols over wired and wireless (local and satellite) networks. NS2 uses TCL script for its front end and C++ as its back end [1,5]. NS2 is completely command based and one needs to create a TCL file for running any network simulation. Therefore, it’s very tedious for ...

This paper describes the architecture and implementation of a hybrid ns2 based network simulator. The system uses a generic xml description for the simulation jobs and uses the Java Messaging System to communicate with components like a graphical front-end or a toolkit for a visualization of the results. The hybrid simulator is an extension of standard ns2 , which supports the representation of...

wireless ad hoc networks are composed of independent nodes managing the network without any infrastructure. the connection between nodes is provided by sending packages and by trusting to each other. therefore, using efficient and certain protocols is the essential requirement of these networks. due to special characteristics of wireless ad hoc networks such as lack of a fixed infrastructure, t...

SCTP (Stream Control Transport Protocol) is a reliable transport layer protocol which provides acknowledged, error-free and non-duplicated transfer of message. It combines the advantages of TCP and UDP. In additional to that, SCTP has many attractive characteristics such as multi-homing, multi-streaming and partial data reliability. This paper thoroughly discusses about the advantages of SCTP. ...

In order to observe the behaviour of a protocol in various scenarios, network simulators are used. There are few network simulators available for usage but which one will provide optimum performance and suitability of network simulator for a particular scenario is always an important decision. In this paper we analyse behaviour of two different network simulators for a same MANET routing protoc...

Establishing and implementation of a whole network in real time scenario is very difficult. It is too much time consuming and costly to deploy a complete test bed component containing multiple networks (computers, routers and data links) to validate and verify a certain network protocol or a specific network algorithm for wired and wireless network. A widespread methodology is used for verifyin...

Advances in multimedia and ad-hoc networking have urged a wealth of research in multimedia delivery over ad-hoc networks. This comes as no surprise, as those networks are versatile and beneficial to a plethora of applications where the use of fully wired network has proved intricate if not impossible, such as prompt formation of networks during conferences, disaster relief in case of flood and ...