Computer Network Simulation Using NS2

Computer Network Simulations Using NS2 provides a solid foundation of computer networking knowledge and skills, covering everything from simple operating system commands to the analysis of complex network performance metrics. The book begins with a discussion of the evolution of data communication techniques and the fundamental issues associated with performance evaluation. After presenting a preliminary overview of simulation and other performance evaluation techniques, the authors: Describe a number of computer network protocols and TCP/IP and OSI models, highlighting the networking devices used Explain a socket and its use in network programming, fostering the development of network applications using C and socket API Introduce the NS2 network simulator, exhibiting its internal architecture, constituent software packages, and installation in different operating systems Delve into simulation using NS2, elaborating on the use of Tcl and OTcl scripts as well as AWK scripting and plotting with Gnuplot Show how to simulate wired and wireless network protocols step by step, layer by layer Explore the idea of simulating very large networks, identifying the challenges associated with measuring and graphing the various network parameters Include nearly 90 example programs, scripts, and outputs, along with several exercises requiring application of the theory and programming Computer Network Simulations Using NS2 emphasizes the implementation and simulation of real-world computer network protocols, affording readers with valuable opportunities for hands-on practice while instilling a deeper understanding of how computer network protocols work.

IntroductionRapid Evolution of Voice and Data Communication TechniquesEvolution of Computer Communication NetworksConvergence of Data and Telecommunication NetworksIntegration of TCP/IP into UnixQueueing TheoryOverview of SimulationA Few Basic Concepts in SimulationDiscrete-Event SimulationBasics of Network SimulationIntroduction to NS2Common Mistakes in Simulation Network ProtocolsTCP/IP Protocol SuiteTerminologyArchitecture of TCP/IPOverview of the Operation of TCPApplication Layer Protocols of TCPTCP/IP versus the ISO/OSI ModelAdaptation of the TCP WindowImprovement of TCP PerformanceNetworking Devices Network Programming Using Socket APIIntroductionSocket InterfaceSocket APII/O MultiplexingConcurrencyBroadcasting Introduction to NS2Simulator StructureSimulator Input and OutputNS2 Installation StepsNS2 Directories and FilesNetwork Animator (NAM)NS2 Program StructureSummary Basics of Protocol Simulation Using NS2TclProgram ExecutionBasic Programming ConstructsArraysListsDictionariesProceduresFile HandlingObject-Oriented Tcl (OTcl)AWK ScriptingGnuplot Wired Network SimulationIntroductionStep-by-Step Wired Network SimulationVisualization Using NAMLink Layer — Links and QueueingNetwork Layer — RoutingTransport Layer — Transport AgentsPacket TraceApplication Layer — Traffic GeneratorsNetwork Dynamics— Node/Link Failure ModelsError Model Wireless Network SimulationWired Versus Wireless Network SimulationStep-by-Step Wireless Network SimulationWireless Networking ModulesWireless RoutingWireless TraceNetwork Performance MetricsPractical Simulation IssuesA Complete Example

Ajit Kumar Nayak is professor and head of the Department of Computer Science and Information Technology in the Institute of Technical Education and Research at Siksha ’O’ Anusandhan University, Bhubaneswar. He earned his M. Tech. and Ph.D. in computer science at Utkal University in 2001 and 2010, respectively. He has published more than 20 research articles in conference proceedings and journals. He is a member of the IEEE and IET and a life member of the Orissa Information Technology Society (OITS). He has guided more than 15 M. Tech. students, and five research students are currently pursuing their Ph.D. under his guidance. His current research interests include mobile ad hoc networks, wireless sensor networks, and language computing. Satyananda Champati Rai is currently working as an associate professor and head of the Department of Information Technology at the Silicon Institute of Technology, Bhubaneswar. He earned his M. Tech. and Ph.D. in computer science from Utkal University in 2001 and 2012, respectively. He has published 20 research articles in national and international conference proceedings and journals and has written a monograph titled QoS Provisioning in Mobile Ad Hoc Networks: Principles, Practices and Models. He is a member of the IEEE and a life member of the ISTE and Orissa Information Technology Society (OITS). He has guided 22 M. Tech. students and served as program committee member in several international conferences. His current research interests include mobile ad hoc networks, wireless sensor networks, and mobile cloud computing related to quality of service and performance analysis. Rajib Mall earned his B.E., M.E., and Ph.D. from the Indian Institute of Science, Bangalore. He worked for nearly three years for Motorola India Ltd. before he joined the Department of Computer Science and Engineering (CSE) at the Indian Institute of Technology, Kharagpur, in 1994, as a faculty member. He is currently a professor and the head of the Department of CSE and the School of Information Technology at the Indian Institute of Technology, Kharagpur. His current research interests include program testing and software engineering issues in large systems and those in real-time embedded systems. He has published approximately 200 research papers and refereed international journals and conference proceedings and has carried out a number of sponsored projects in the areas of program analysis and program testing. He is a senior member of the IEEE (USA).