QualNet is a state-of-the-art simulator for large, heterogeneous networks and the distributed applications that execute on those networks. lt enables users to:- Design new protocol models-Optimize new and existing models- Design large wired and wireless networks using pre-configured or user-designed models- Analyze the performance of networks and perform what-if analysis to optimize themIts other features are:- Robust set ofwired and wireless network protocol and device models, useful for simulating diverse types of networks.- Optimized for speed and scalability on one processor, QualNet executes equivalent scenarios 5-10x times faster than commercial alternatives.-Designed from the ground-up as a parallel simulator, QualNet executes your simulation multiples faster as you add processors.- Arobust graphical userinterface covers all aspects ofthe simulation,from scenario creation and topology setup, integration of custom protocols, through real-time execution of network models from within the GUI, animation, to post-simulation statistical analysis.- QualNet has been used to simulate high-fidelity models ofwireless networks with as many as 50,000 mobile nodes.This book provides a detailed introduction to Qualnet simulator. lt is very useful for those who are new to concepts. The aim of this book is to give maximum guidance to the students, faculty, research scholars and people working in the area of networks.